.page-faq {
  background:
    radial-gradient(900px 420px at 84% -6%, rgba(0, 229, 255, .07), transparent 70%),
    radial-gradient(720px 380px at 6% 3%, rgba(212, 175, 55, .06), transparent 72%),
    var(--ink);
  color: var(--paper);
  padding: 0 0 clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

/* 面包屑 */
.page-faq .breadcrumb {
  padding: 22px 0 0;
  font-size: 12px;
  letter-spacing: .04em;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--slate);
}

.page-faq .breadcrumb__list a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

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

.page-faq .breadcrumb__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.page-faq .breadcrumb__sep {
  color: rgba(152, 162, 174, .55);
}

/* 题头 */
.page-faq .faq-hero {
  padding: 26px 0 0;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  max-width: 20ch;
}

.page-faq .faq-hero .lede {
  margin: 0;
  color: var(--slate);
  max-width: 54ch;
}

.page-faq .faq-hero__figure {
  margin: 26px 0 0;
}

.page-faq .faq-hero__figure .img-frame {
  border: 1px solid var(--line-2);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.78) contrast(1.06) brightness(.78);
}

.page-faq .faq-hero__cap {
  margin: 10px 2px 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate);
}

/* 分类索引 */
.page-faq .faq-index {
  padding: clamp(34px, 5vw, 56px) 0 0;
}

.page-faq .faq-index h2 {
  margin: 0 0 16px;
  color: var(--paper);
}

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

.page-faq .faq-index__pill {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 20px;
  border: 1px solid var(--line-2);
  border-radius: var(--pill);
  background: var(--ink-2);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

.page-faq .faq-index__pill:hover,
.page-faq .faq-index__pill:focus-visible {
  border-color: var(--gold);
  background: rgba(212, 175, 55, .09);
}

.page-faq .faq-index__pill:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

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

.page-faq .faq-index__count {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--slate);
  white-space: nowrap;
}

/* 章节 */
.page-faq .faq-chapter {
  padding: clamp(40px, 6vw, 68px) 0 0;
  scroll-margin-top: calc(var(--hdr-h) + 18px);
}

.page-faq .faq-chapter .chapter-head {
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line-2);
}

.page-faq .faq-chapter .chapter-note {
  color: var(--slate);
}

/* 折叠问答 */
.page-faq .faq-qa {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-item {
  background: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

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

.page-faq .faq-item[open] {
  background: var(--ink-3);
  border-color: rgba(0, 229, 255, .3);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color var(--t) var(--ease);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  padding-top: 1px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--gold);
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--r-md);
}

.page-faq .faq-item__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .faq-item__a {
  position: relative;
  padding: 0 20px 18px 48px;
}

.page-faq .faq-item__a::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 2px;
  bottom: 20px;
  width: 2px;
  border-radius: 2px;
  background: transparent;
  transition: background var(--t) var(--ease);
}

.page-faq .faq-item[open] .faq-item__a::before {
  background: var(--cyan);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper);
}

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

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .35);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-faq .faq-item__a a:hover {
  color: var(--cyan-mist);
  border-bottom-color: var(--cyan-mist);
}

.page-faq .faq-item__a a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 3px;
}

/* 步骤序号 */
.page-faq .faq-steps {
  counter-reset: step;
  display: grid;
  gap: 0;
  margin: 12px 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  position: relative;
  padding: 9px 0 9px 38px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
}

.page-faq .faq-steps li + li {
  border-top: 1px solid var(--line-2);
}

.page-faq .faq-steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

/* 无序号清单 */
.page-faq .faq-plain {
  display: grid;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-plain li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
}

.page-faq .faq-plain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--gold);
}

/* 章节收尾提示条 */
.page-faq .faq-next {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin: 24px 0 0;
  padding: 13px 20px;
  border: 1px solid var(--line-3);
  border-radius: var(--pill);
  background: linear-gradient(90deg, rgba(0, 229, 255, .07), rgba(212, 175, 55, .08));
  font-size: 13px;
  color: var(--slate);
}

.page-faq .faq-next a {
  margin-left: auto;
  color: var(--gold);
  font-size: 13px;
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 175, 55, .42);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

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

.page-faq .faq-next a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 3px;
}

/* 图文分栏 */
.page-faq .faq-grid {
  display: grid;
  gap: 26px;
  margin-top: 22px;
}

.page-faq .faq-side .img-frame {
  border: 1px solid var(--line-2);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-faq .faq-side img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.8) contrast(1.06) brightness(.8);
}

.page-faq .faq-side__cap {
  margin: 10px 2px 0;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .06em;
  color: var(--slate);
}

/* 客服区块 */
.page-faq .faq-contact__lead p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
  max-width: 58ch;
}

.page-faq .faq-contact__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .35);
}

.page-faq .faq-contact__more a:hover {
  color: var(--cyan-mist);
  border-bottom-color: var(--cyan-mist);
}

.page-faq .faq-contact {
  padding: 22px 22px 8px;
  border-radius: var(--r-lg);
}

.page-faq .faq-contact__title {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: .18em;
  font-weight: 500;
  color: var(--gold);
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-2);
}

.page-faq .faq-contact__row:last-child {
  border-bottom: none;
}

.page-faq .faq-contact__label {
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--slate);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--paper);
  word-break: break-all;
}

/* 窄屏微调 */
@media (max-width: 559px) {
  .page-faq .faq-item__q {
    padding: 14px;
    gap: 10px;
    font-size: 14px;
  }

  .page-faq .faq-item__a {
    padding: 0 14px 16px 38px;
  }

  .page-faq .faq-item__a::before {
    left: 15px;
    bottom: 18px;
  }

  .page-faq .faq-next {
    border-radius: var(--r-lg);
    padding: 14px 16px;
  }

  .page-faq .faq-next a {
    margin-left: 0;
  }
}

/* 中小屏：索引两列 */
@media (min-width: 720px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 桌面：分栏与索引三列 */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: end;
    gap: 32px;
  }

  .page-faq .faq-grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .72fr);
    align-items: start;
    gap: 32px;
  }

  .page-faq .faq-contact__lead {
    padding-top: 6px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}