.page-faq {
  --faq-shadow: 6px 6px 0 0 rgba(0, 0, 0, .55);
  overflow-wrap: break-word;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(22px, 4vw, 36px) 0 clamp(32px, 5vw, 56px);
  background-image:
    linear-gradient(to right, rgba(140, 149, 161, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(140, 149, 161, .07) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: -1px -1px;
}

.page-faq .faq-hero__copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.2vw, 54px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.8;
  color: var(--silver-2);
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 0;
  padding-top: 18px;
  border-top: 2px solid var(--line-strong);
}

.page-faq .faq-hero__facts dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--mist);
  margin-bottom: 6px;
}

.page-faq .faq-hero__facts dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.45;
  color: var(--gold);
  font-weight: 700;
}

.page-faq .faq-hero__facts dd.faq-hero__mono {
  font-family: var(--font-mono);
  letter-spacing: .06em;
}

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

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

/* ---------- 双栏排查台 ---------- */
.page-faq .faq-board {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .faq-legend {
  border: 2px solid var(--line-strong);
  background: var(--ink-2);
  box-shadow: var(--faq-shadow);
  padding: 20px 18px;
}

.page-faq .faq-legend__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--silver-2);
}

.page-faq .faq-legend__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-legend__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--silver-2);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-legend__link:hover,
.page-faq .faq-legend__link:focus-visible {
  color: var(--paper);
  background: rgba(201, 162, 39, .09);
  border-left-color: var(--gold);
}

.page-faq .faq-legend__link.is-active {
  color: var(--paper);
  background: rgba(200, 64, 46, .12);
  border-left-color: var(--cinnabar);
}

.page-faq .faq-legend__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .faq-legend__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-stream {
  display: grid;
  gap: clamp(30px, 4vw, 46px);
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  border-top: 2px solid var(--line-strong);
  padding-top: clamp(18px, 3vw, 26px);
  min-width: 0;
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
}

.page-faq .faq-sec__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cinnabar);
  border: 2px solid var(--cinnabar);
  padding: 2px 7px;
  line-height: 1.4;
}

.page-faq .faq-sec h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.32;
  color: var(--paper);
}

.page-faq .faq-sec__intro {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver-2);
}

.page-faq .faq-sec__intro--tight {
  margin: 18px 0 0;
  font-size: 13.5px;
}

.page-faq .faq-sec__intro a {
  color: var(--gold);
  text-decoration: underline;
  text-decoration-color: rgba(201, 162, 39, .45);
  text-underline-offset: 3px;
}

.page-faq .faq-sec__intro a:hover {
  color: var(--paper);
}

/* ---------- 步骤条 ---------- */
.page-faq .steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .steps li {
  counter-increment: faqstep;
  position: relative;
  padding: 12px 14px 12px 54px;
  border: 1px solid var(--line-strong);
  background: var(--ink-2);
  color: var(--silver);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 12px;
  top: 13px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--cinnabar);
  border: 1px solid rgba(200, 64, 46, .55);
  padding: 1px 5px;
  line-height: 1.4;
}

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

/* ---------- 手风琴 ---------- */
.page-faq .q-item {
  border: 2px solid var(--line-strong);
  background: var(--ink-2);
  margin-bottom: 10px;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .q-item[open] {
  border-color: var(--gold-deep);
}

.page-faq .q-item summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 14px 46px 14px 16px;
  color: var(--paper);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .q-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--gold);
}

.page-faq .q-item[open] summary::after {
  content: "–";
}

.page-faq .q-item summary:hover,
.page-faq .q-item summary:focus-visible {
  color: var(--gold);
}

.page-faq .q-body {
  margin: 0;
  padding: 12px 16px 16px;
  border-top: 1px dashed var(--line-strong);
  color: var(--silver-2);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 索引批次标签 ---------- */
.page-faq .batch-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.page-faq .batch-chip {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--gold);
  border: 1px solid var(--gold-deep);
  background: rgba(201, 162, 39, .07);
  padding: 4px 9px;
  line-height: 1.5;
}

.page-faq .batch-chip--red {
  color: var(--paper);
  background: var(--cinnabar);
  border-color: var(--cinnabar);
}

/* ---------- 权益清单 ---------- */
.page-faq .rights-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .rights-list li {
  border-left: 3px solid var(--gold);
  background: var(--ink-2);
  padding: 12px 14px;
}

.page-faq .rights-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .rights-list p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--silver-2);
}

.page-faq .rights-meta {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  color: var(--gold);
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 22px;
  border: 2px solid var(--line-strong);
  box-shadow: var(--faq-shadow);
}

/* ---------- 联系支持 ---------- */
.page-faq .support {
  border: 2px solid var(--line-strong);
  background: var(--ink-2);
  box-shadow: var(--faq-shadow);
  padding: clamp(18px, 3vw, 28px);
}

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

.page-faq .support__item {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  min-width: 0;
}

.page-faq .support__label {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-faq .support__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: .02em;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .support__value--text {
  font-family: var(--font-sans);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--silver);
}

.page-faq .support__note {
  margin: 20px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--cinnabar);
  font-size: 13px;
  line-height: 1.8;
  color: var(--silver-2);
}

.page-faq .faq-footlinks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__facts {
    gap: 18px;
  }

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

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: start;
  }

  .page-faq .faq-hero__figure {
    margin-top: 24px;
  }

  .page-faq .faq-board {
    grid-template-columns: 268px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-legend {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero__lede {
    font-size: 17px;
  }

  .page-faq .faq-sec__intro {
    font-size: 15.5px;
  }
}