.page-faq {
  --faq-gap: clamp(20px, 3vw, 36px);
  --faq-pad: clamp(48px, 7vw, 96px);
  background: var(--ink);
  color: var(--text);
  overflow-x: hidden;
}

.page-faq .container {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.page-faq .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  padding-top: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(32px, 5vw, 64px);
  background:
    radial-gradient(1100px 420px at 82% -10%, rgba(53, 240, 208, 0.10), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  grid-template-columns: 1fr;
  padding-top: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__lead h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  color: var(--text);
  max-width: 18ch;
}

.page-faq .faq-hero__lead .lede {
  margin-top: 18px;
  max-width: 62ch;
  color: var(--text-soft);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
}

.page-faq .faq-hero__lead .eyebrow {
  color: var(--blade);
}

.page-faq .faq-hero__quick {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__aside {
  display: grid;
  gap: 14px;
  align-content: end;
}

.page-faq .faq-hero__aside .panel__value {
  font-size: clamp(30px, 3.6vw, 44px);
  color: var(--blade);
}

.page-faq .faq-hero__aside .panel__label {
  color: var(--muted);
}

.page-faq .faq-hero__aside .panel__foot {
  color: var(--muted);
}

/* ---------- Section shell ---------- */
.page-faq .section {
  padding-top: var(--faq-pad);
  padding-bottom: var(--faq-pad);
}

.page-faq .section__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--text);
  margin: 10px 0 0;
  max-width: 20ch;
}

.page-faq .section__note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .section__head .eyebrow {
  color: var(--blade);
}

/* ---------- 高频速答 ---------- */
.page-faq .faq-fast {
  background: var(--ink);
}

.page-faq .faq-fast__grid {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  grid-template-columns: 1fr;
}

.page-faq .faq-fast__card {
  background: var(--ink-2);
  padding: clamp(20px, 2.6vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-left: 2px solid transparent;
  transition: border-color var(--dur-s) var(--ease), background var(--dur-s) var(--ease);
}

.page-faq .faq-fast__card:hover {
  border-left-color: var(--blade);
  background: var(--ink-3);
}

.page-faq .faq-fast__q {
  font-size: clamp(16px, 1.6vw, 18px);
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin: 0;
}

.page-faq .faq-fast__q::before {
  content: "›";
  color: var(--flame);
  font-family: var(--font-mono);
  margin-right: 8px;
  font-weight: 400;
}

.page-faq .faq-fast__a {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 分类问答主体 ---------- */
.page-faq .faq-cats {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-body {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  gap: clamp(24px, 3vw, 44px);
  grid-template-columns: 1fr;
}

.page-faq .faq-index {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-faq .faq-index__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(20, 58, 49, 0.35);
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color var(--dur-h) var(--ease), border-color var(--dur-h) var(--ease), background var(--dur-h) var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--blade-dim);
  letter-spacing: 0.06em;
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  color: var(--text);
  border-color: var(--blade);
  background: rgba(53, 240, 208, 0.08);
  outline: none;
}

.page-faq .faq-index__item:hover .faq-index__num,
.page-faq .faq-index__item:focus-visible .faq-index__num {
  color: var(--blade);
}

.page-faq .faq-main {
  display: flex;
  flex-direction: column;
  gap: clamp(36px, 5vw, 64px);
  min-width: 0;
}

.page-faq .faq-cat__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.2vw, 26px);
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0 0 6px;
}

.page-faq .faq-cat__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--blade);
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-cat__list {
  border-top: 1px solid var(--line);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-q {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-q__sum {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  transition: color var(--dur-h) var(--ease);
}

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

.page-faq .faq-q__sum:hover {
  color: var(--blade);
}

.page-faq .faq-q__sum:focus-visible {
  outline: 2px solid var(--blade);
  outline-offset: 3px;
}

.page-faq .faq-q__icon {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease);
}

.page-faq .faq-q__icon::before,
.page-faq .faq-q__icon::after {
  content: "";
  position: absolute;
  background: var(--blade-dim);
  transition: background var(--dur-s) var(--ease);
}

.page-faq .faq-q__icon::before {
  left: 4px;
  right: 4px;
  top: 7px;
  height: 2px;
}

.page-faq .faq-q__icon::after {
  top: 4px;
  bottom: 4px;
  left: 7px;
  width: 2px;
}

.page-faq .faq-q__text {
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 500;
  line-height: 1.6;
}

.page-faq .faq-q[open] .faq-q__icon {
  transform: rotate(135deg);
  border-color: var(--blade);
}

.page-faq .faq-q[open] .faq-q__icon::before,
.page-faq .faq-q[open] .faq-q__icon::after {
  background: var(--blade);
}

.page-faq .faq-q__a {
  padding: 0 4px 22px 32px;
}

.page-faq .faq-q__a p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.8;
  max-width: 68ch;
}

.page-faq .faq-q__a a {
  color: var(--blade);
  text-decoration: none;
  border-bottom: 1px solid var(--blade-dim);
  transition: border-color var(--dur-h) var(--ease), color var(--dur-h) var(--ease);
}

.page-faq .faq-q__a a:hover {
  color: var(--flame-hi);
  border-bottom-color: var(--flame-hi);
}

/* ---------- 诊断台（白板断点） ---------- */
.page-faq .faq-diag {
  background: var(--board);
  color: var(--board-ink);
  padding-top: clamp(44px, 6vw, 80px);
  padding-bottom: clamp(44px, 6vw, 80px);
  position: relative;
}

.page-faq .faq-diag::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(11, 107, 90, 0.06) 0 1px, transparent 1px 56px);
  pointer-events: none;
}

.page-faq .faq-diag__grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  grid-template-columns: 1fr;
}

.page-faq .faq-diag__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--board-accent);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--board-flame);
  margin: 0;
}

.page-faq .faq-diag__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--board-ink);
  margin: 20px 0 0;
  max-width: 20ch;
}

.page-faq .faq-diag__intro {
  margin: 16px 0 0;
  color: var(--board-muted);
  font-size: 15px;
  line-height: 1.8;
  max-width: 62ch;
}

.page-faq .faq-diag__fields {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .diag-field {
  display: grid;
  grid-template-columns: 34px 1fr;
  grid-template-rows: auto auto;
  column-gap: 12px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(6, 17, 15, 0.14);
  border-left: 3px solid rgba(6, 17, 15, 0.14);
  border-radius: var(--radius);
  transition: border-color var(--dur-h) var(--ease), background var(--dur-h) var(--ease);
}

.page-faq .diag-field:hover {
  border-left-color: var(--board-accent);
}

.page-faq .diag-field:focus,
.page-faq .diag-field:focus-visible,
.page-faq .diag-field:focus-within {
  outline: none;
  border-color: var(--board-flame);
  border-left-color: var(--board-flame);
  background: #ffffff;
}

.page-faq .diag-field__no {
  grid-row: 1 / span 2;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--board-muted);
  transition: color var(--dur-h) var(--ease);
}

.page-faq .diag-field:focus .diag-field__no,
.page-faq .diag-field:focus-visible .diag-field__no {
  color: var(--board-flame);
}

.page-faq .diag-field__label {
  font-size: 15px;
  font-weight: 700;
  color: var(--board-ink);
  line-height: 1.4;
  transition: color var(--dur-h) var(--ease);
}

.page-faq .diag-field:focus .diag-field__label,
.page-faq .diag-field:focus-visible .diag-field__label {
  color: var(--board-flame);
}

.page-faq .diag-field__hint {
  margin-top: 4px;
  font-size: 13.5px;
  color: var(--board-muted);
  line-height: 1.6;
}

.page-faq .diag-field--note {
  border-left-style: dashed;
}

.page-faq .faq-diag__figure {
  margin: 0;
  align-self: start;
}

.page-faq .faq-diag__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid rgba(6, 17, 15, 0.16);
  border-radius: var(--radius);
}

.page-faq .faq-diag__caption {
  margin-top: 12px;
  font-size: 13.5px;
  color: var(--board-muted);
  line-height: 1.6;
  padding-left: 12px;
  border-left: 2px solid var(--board-flame);
}

/* ---------- 处理流程 ---------- */
.page-faq .faq-flow {
  background: var(--ink);
}

.page-faq .faq-flow__steps {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
}

.page-faq .faq-step {
  position: relative;
  padding: 26px 4px 26px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 10px;
}

.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--flame);
}

.page-faq .faq-step__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.2vw, 26px);
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0;
}

.page-faq .faq-step__text {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.8;
  max-width: 52ch;
}

.page-faq .faq-flow__foot {
  margin: clamp(24px, 3vw, 34px) 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  max-width: 68ch;
}

.page-faq .faq-flow__foot a {
  color: var(--blade);
  text-decoration: none;
  border-bottom: 1px solid var(--blade-dim);
  transition: color var(--dur-h) var(--ease), border-color var(--dur-h) var(--ease);
}

.page-faq .faq-flow__foot a:hover {
  color: var(--flame-hi);
  border-bottom-color: var(--flame-hi);
}

/* ---------- 人工客服 ---------- */
.page-faq .faq-reach {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  padding-top: var(--faq-pad);
  padding-bottom: var(--faq-pad);
}

.page-faq .faq-reach__wrap {
  display: grid;
  gap: clamp(24px, 3.5vw, 48px);
  grid-template-columns: 1fr;
  align-items: center;
}

.page-faq .faq-reach__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--glass);
}

.page-faq .faq-reach__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.88;
}

.page-faq .faq-reach__body .eyebrow {
  color: var(--blade);
}

.page-faq .faq-reach__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--text);
  margin: 12px 0 0;
  max-width: 18ch;
}

.page-faq .faq-reach__text {
  margin: 16px 0 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.8;
  max-width: 58ch;
}

.page-faq .faq-reach__list {
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-reach__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  justify-content: space-between;
  align-items: baseline;
  padding: 14px 16px;
  background: var(--ink-2);
  transition: background var(--dur-s) var(--ease);
}

.page-faq .faq-reach__row:hover {
  background: var(--ink-3);
}

.page-faq .faq-reach__row dt {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-family: var(--font-mono);
}

.page-faq .faq-reach__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--text);
  letter-spacing: 0.01em;
  word-break: break-word;
}

.page-faq .faq-reach__note {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  padding-left: 12px;
  border-left: 2px solid var(--line);
  max-width: 62ch;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-fast__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-flow__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 28px;
  }

  .page-faq .faq-step {
    border-bottom: none;
    border-top: 2px solid var(--line);
    padding-top: 22px;
    transition: border-color var(--dur-s) var(--ease);
  }

  .page-faq .faq-step:hover {
    border-top-color: var(--blade);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(200px, 260px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    flex-direction: column;
    overflow: visible;
    position: sticky;
    top: 120px;
    gap: 0;
    padding-bottom: 0;
    border-top: 1px solid var(--line);
  }

  .page-faq .faq-index__item {
    flex: 1 1 auto;
    display: flex;
    justify-content: flex-start;
    border: none;
    border-left: 2px solid var(--line);
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
    padding: 14px 14px;
    white-space: normal;
    font-size: 15px;
    gap: 12px;
  }

  .page-faq .faq-index__item:hover,
  .page-faq .faq-index__item:focus-visible {
    border-left-color: var(--blade);
    border-bottom-color: var(--line);
    background: var(--glass);
    transform: translateX(4px);
  }

  .page-faq .faq-diag__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-faq .faq-reach__wrap {
    grid-template-columns: 5fr 7fr;
  }

  .page-faq .faq-q__sum {
    padding: 20px 4px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-fast__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}