.page-faq {
  --faq-gap: clamp(18px, 4vw, 34px);
  --faq-border: 2px solid var(--ink-900);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(47, 123, 255, 0.22), rgba(10, 13, 19, 0) 62%),
    var(--ink-950);
  color: var(--white);
  padding-block: clamp(24px, 5vw, 52px) clamp(34px, 6vw, 74px);
  border-bottom: var(--faq-border);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -10%;
  top: -6%;
  width: 44%;
  height: 112%;
  background: repeating-linear-gradient(-9deg, var(--blue) 0 2px, transparent 2px 18px);
  opacity: 0.14;
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 34px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero .eyebrow {
  color: var(--lime);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.5rem, 10vw, 5.6rem);
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin: 14px 0 18px;
}

.page-faq .faq-hero .lede {
  max-width: 48ch;
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  line-height: 1.85;
  color: rgba(255, 253, 247, 0.86);
  margin: 0;
}

.page-faq .faq-readout {
  border: 2px solid var(--blue);
  background: rgba(26, 21, 18, 0.92);
  box-shadow: var(--shadow-lime);
  padding: 16px 18px 14px;
}

.page-faq .faq-readout .eyebrow {
  margin: 0 0 8px;
  color: var(--gray);
}

.page-faq .faq-readout__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(140, 151, 168, 0.4);
}

.page-faq .faq-readout__row:last-child {
  border-bottom: 0;
  padding-bottom: 2px;
}

.page-faq .faq-readout__k {
  font-size: 0.84rem;
  letter-spacing: 0.05em;
  color: var(--gray);
}

.page-faq .faq-readout__v {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--lime);
  white-space: nowrap;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 40px;
  }
}

/* ---------- 章节标题 ---------- */
.page-faq .faq-sec-head {
  max-width: 70ch;
  margin-bottom: var(--faq-gap);
}

.page-faq .faq-sec-head h2 {
  margin: 10px 0 12px;
}

.page-faq .faq-sec-head__note {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--ink-900);
}

.page-faq .faq-sec-head--dark .faq-sec-head__note,
.page-faq .faq-sec-head--dark h2 {
  color: var(--white);
}

.page-faq .faq-sec-head--dark .eyebrow {
  color: var(--lime);
}

/* ---------- 两条查找路径 ---------- */
.page-faq .faq-two-up {
  display: grid;
  gap: 18px;
}

.page-faq .faq-lane {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  border: var(--faq-border);
  background: var(--white);
  padding: 20px 20px 22px;
  box-shadow: 6px 6px 0 var(--ink-900);
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-faq .faq-lane--time {
  border-top: 8px solid var(--blue);
}

.page-faq .faq-lane--col {
  border-top: 8px solid var(--lime);
}

.page-faq .faq-lane:hover,
.page-faq .faq-lane:focus-within {
  transform: translateY(-2px);
  box-shadow: 6px 10px 0 var(--blue);
}

.page-faq .faq-lane h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.2rem;
  line-height: 1.45;
  color: var(--ink-950);
}

.page-faq .faq-lane p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ink-900);
}

.page-faq .faq-lane .btn {
  margin-top: 4px;
}

.page-faq .faq-overview__figure {
  margin: var(--faq-gap) 0 0;
}

@media (min-width: 780px) {
  .page-faq .faq-two-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 双栏问答 ---------- */
.page-faq .faq-split__eyebrow {
  margin: 0 0 16px;
  color: var(--blue-deep);
}

.page-faq .faq-split {
  display: grid;
  gap: 22px;
}

.page-faq .faq-split__col {
  border: var(--faq-border);
  background: var(--white);
  box-shadow: 6px 6px 0 var(--ink-900);
  overflow: hidden;
}

.page-faq .faq-split__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--ink-950);
  color: var(--white);
  border-bottom: var(--faq-border);
}

.page-faq .faq-split__col--alt .faq-split__head {
  background: var(--blue-deep);
}

.page-faq .faq-split__head .mono {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--lime);
  flex: 0 0 auto;
}

.page-faq .faq-split__head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  line-height: 1.4;
}

.page-faq .faq-q {
  border-bottom: 1px solid rgba(140, 151, 168, 0.36);
}

.page-faq .faq-q:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-q__sum {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 0.97rem;
  line-height: 1.55;
  color: var(--ink-950);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

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

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

.page-faq .faq-q__sum:hover {
  background: var(--blue);
  color: var(--white);
}

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

.page-faq .faq-q[open] > .faq-q__sum {
  background: var(--ink-950);
  color: var(--white);
}

.page-faq .faq-q__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--blue-deep);
  padding-top: 3px;
}

.page-faq .faq-q__sum:hover .faq-q__num,
.page-faq .faq-q[open] .faq-q__num {
  color: var(--lime);
}

.page-faq .faq-q__body {
  padding: 14px 16px 20px 42px;
  background: var(--paper);
  border-left: 4px solid var(--lime);
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--ink-900);
}

.page-faq .faq-q__body p {
  margin: 0 0 0.7em;
}

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

.page-faq .faq-split__figure {
  margin: 0;
  border-top: var(--faq-border);
  background: var(--paper-2);
}

/* ---------- 编号步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .faq-steps > li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 38px;
  margin-bottom: 10px;
  font-size: 0.93rem;
  line-height: 1.75;
}

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

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 26px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--white);
  background: var(--blue-deep);
}

/* ---------- 旧版本与收藏 ---------- */
.page-faq .faq-archive {
  background: var(--ink-900);
  color: var(--white);
}

.page-faq .faq-archive__grid {
  display: grid;
  gap: 18px;
}

.page-faq .faq-archive .archive-card {
  background: var(--paper);
  border: 2px solid var(--blue);
  box-shadow: 6px 6px 0 rgba(47, 123, 255, 0.45);
  padding: 20px 20px 18px;
  color: var(--ink-900);
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-faq .faq-archive .archive-card:hover {
  transform: translateY(-2px);
  box-shadow: 6px 10px 0 var(--lime);
}

.page-faq .faq-archive .archive-card__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--blue-deep);
}

.page-faq .faq-archive .archive-card__title {
  margin: 14px 0 8px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.06rem;
  color: var(--ink-950);
}

.page-faq .faq-archive .archive-card__body {
  margin: 0 0 14px;
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-faq .faq-archive .archive-card__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--blue-deep);
}

.page-faq .faq-archive__note {
  margin: var(--faq-gap) 0 0;
  padding: 16px 18px;
  border-left: 6px solid var(--lime);
  background: rgba(245, 239, 226, 0.07);
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(255, 253, 247, 0.9);
}

@media (min-width: 820px) {
  .page-faq .faq-archive__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 更新节奏 ---------- */
.page-faq .faq-cadence__grid {
  gap: 24px;
}

.page-faq .faq-cadence__aside h2 {
  margin: 10px 0 12px;
}

.page-faq .faq-cadence__aside p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
}

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

.page-faq .faq-rhythm > li {
  display: grid;
  gap: 8px;
  padding: 16px 0;
  border-top: var(--faq-border);
}

.page-faq .faq-rhythm > li:last-child {
  border-bottom: var(--faq-border);
}

.page-faq .faq-rhythm__k {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--orange);
}

.page-faq .faq-rhythm__d h3 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.04rem;
  color: var(--ink-950);
}

.page-faq .faq-rhythm__d p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--ink-900);
}

@media (min-width: 640px) {
  .page-faq .faq-rhythm > li {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-faq .faq-rhythm__k {
    padding-top: 4px;
  }
}

/* ---------- 兜底路径 ---------- */
.page-faq .faq-escalate {
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 106, 24, 0.16), rgba(10, 13, 19, 0) 55%),
    var(--ink-950);
  color: var(--white);
  border-top: var(--faq-border);
}

.page-faq .faq-escalate__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-escalate__main .eyebrow {
  color: var(--lime);
}

.page-faq .faq-escalate__main h2 {
  margin: 10px 0 14px;
  color: var(--white);
}

.page-faq .faq-escalate__main .prose {
  margin: 0 0 6px;
  color: rgba(255, 253, 247, 0.85);
  font-size: 0.96rem;
  line-height: 1.85;
}

.page-faq .faq-escalate__main .faq-steps > li {
  color: rgba(255, 253, 247, 0.9);
}

.page-faq .faq-escalate__main .faq-steps > li::before {
  color: var(--ink-950);
  background: var(--lime);
}

.page-faq .faq-escalate__card {
  border: 2px solid var(--orange);
  background: rgba(26, 21, 18, 0.9);
  box-shadow: 6px 6px 0 var(--orange);
  padding: 20px;
}

.page-faq .faq-escalate__card .mono {
  margin: 0 0 10px;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-faq .faq-mail {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(0.92rem, 2.6vw, 1.06rem);
  font-weight: 700;
  color: var(--lime);
  word-break: break-all;
  text-decoration: none;
  border-bottom: 2px solid var(--lime);
  padding-bottom: 6px;
}

.page-faq .faq-mail:hover,
.page-faq .faq-mail:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-faq .faq-escalate__hint {
  margin: 16px 0 18px;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(255, 253, 247, 0.82);
}

.page-faq .faq-escalate__links {
  margin: 18px 0 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-faq .faq-escalate__links a {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: var(--blue);
  text-underline-offset: 3px;
}

.page-faq .faq-escalate__links a:hover,
.page-faq .faq-escalate__links a:focus-visible {
  color: var(--lime);
  text-decoration-color: var(--lime);
}

@media (min-width: 900px) {
  .page-faq .faq-escalate__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-q__body {
    padding-left: 18px;
  }

  .page-faq .faq-split__head h2 {
    font-size: 1rem;
  }

  .page-faq .faq-split__head {
    padding: 12px 14px;
  }
}