/* ============ 页面作用域：知识中心 /knowledge/ ============ */
.page-faq {
  --faq-phenom: var(--ky-sand-gray);
  --faq-cause: var(--ky-green-mist);
  --faq-do: var(--ky-green-bright);
  background: var(--ky-night);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ky-night);
  color: var(--ky-paper);
  padding: clamp(6rem, 15vw, 9.5rem) 0 clamp(2.5rem, 7vw, 4.25rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 86% 6%, rgba(15, 107, 92, 0.62), transparent 58%),
    repeating-linear-gradient(180deg, transparent 0 46px, rgba(243, 234, 223, 0.055) 46px 47px);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--ky-green-bright) 0%, var(--ky-orange) 62%, var(--ky-signal) 100%);
}

.page-faq .faq-hero .ky-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .ky-breadcrumb,
.page-faq .faq-hero .ky-breadcrumb a {
  color: var(--ky-green-mist);
}

.page-faq .faq-hero__index {
  margin: 1.6rem 0 0;
  color: var(--ky-green-mist);
}

.page-faq .faq-hero__title {
  margin: 0.5rem 0 0;
  max-width: 16ch;
  color: var(--ky-paper);
}

.page-faq .faq-hero__lede {
  margin-top: 1.15rem;
  max-width: 64ch;
  color: rgba(243, 234, 223, 0.82);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 2.1rem 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--ky-line);
  display: grid;
  gap: 0.55rem;
  font-size: 0.95rem;
  color: rgba(243, 234, 223, 0.82);
}

.page-faq .faq-hero__k {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ky-green-mist);
  margin-bottom: 0.15rem;
}

.page-faq .faq-hero__v {
  color: var(--ky-paper);
  font-weight: 600;
  margin-right: 0.35rem;
}

/* ---------- 区块底色 ---------- */
.page-faq .faq-sec {
  padding: clamp(3rem, 8vw, 5.25rem) 0;
}

.page-faq .faq-sec--paper {
  background: var(--ky-paper);
  color: var(--ky-night);
}

.page-faq .faq-sec--sand {
  background: var(--ky-sand);
  color: var(--ky-paper);
}

.page-faq .faq-sec--night {
  background: var(--ky-night);
  color: var(--ky-paper);
}

.page-faq .faq-sec--green {
  background: var(--ky-green);
  color: var(--ky-paper);
}

.page-faq .faq-sec--sand .ky-title,
.page-faq .faq-sec--night .ky-title,
.page-faq .faq-sec--green .ky-title {
  color: var(--ky-paper);
}

.page-faq .faq-sec--sand .ky-index,
.page-faq .faq-sec--night .ky-index,
.page-faq .faq-sec--green .ky-index {
  color: var(--ky-green-mist);
}

.page-faq .faq-lede {
  max-width: 62ch;
  margin: 0.9rem 0 2rem;
  font-size: 1rem;
  line-height: 1.75;
  color: inherit;
  opacity: 0.88;
}

/* ---------- 三步上手 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 2.4rem;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-faq .faq-step {
  position: relative;
  padding: 1.15rem 1.1rem 1.25rem;
  border: 1px solid var(--ky-line-strong);
  background: rgba(243, 234, 223, 0.045);
  border-radius: var(--ky-radius);
  transition: border-color 0.25s var(--ky-ease), transform 0.25s var(--ky-ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:focus-within {
  border-color: var(--ky-green-mist);
  transform: translateY(-2px);
}

.page-faq .faq-step__node {
  display: inline-grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  border: 2px solid var(--ky-green-mist);
  color: var(--ky-green-mist);
  font-size: 0.85rem;
  margin-bottom: 0.85rem;
  transition: background 0.25s var(--ky-ease), border-color 0.25s var(--ky-ease), color 0.25s var(--ky-ease);
}

.page-faq .faq-step:hover .faq-step__node,
.page-faq .faq-step:focus-within .faq-step__node {
  background: var(--ky-orange);
  border-color: var(--ky-orange);
  color: var(--ky-night);
}

.page-faq .faq-step__title {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ky-paper);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.72;
  color: rgba(243, 234, 223, 0.78);
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--ky-line-strong);
  border-radius: var(--ky-radius);
  overflow: hidden;
  background: var(--ky-night);
}

/* ---------- 目录 + 三段式答案 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 2rem;
}

.page-faq .faq-toc {
  border-top: 2px solid var(--ky-green);
  padding-top: 0.85rem;
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0.8rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.page-faq .faq-toc__link {
  display: flex;
  gap: 0.6rem;
  align-items: baseline;
  padding: 0.45rem 0.55rem;
  color: var(--ky-mud);
  text-decoration: none;
  font-size: 0.92rem;
  border-left: 2px solid transparent;
  transition: color 0.2s var(--ky-ease), border-color 0.2s var(--ky-ease), background 0.2s var(--ky-ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--ky-green);
  border-left-color: var(--ky-orange);
  background: rgba(15, 107, 92, 0.08);
}

.page-faq .faq-toc__link .ky-mono {
  font-size: 0.72rem;
  color: var(--ky-green-bright);
}

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

.page-faq .faq-item {
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid rgba(46, 36, 29, 0.16);
  border-left: 4px solid var(--ky-green);
  border-radius: var(--ky-radius);
  box-shadow: var(--ky-shadow-paper-sm);
  margin: 0 0 1rem;
  overflow: hidden;
}

.page-faq .faq-item__summary {
  display: grid;
  grid-template-columns: 2.3rem minmax(0, 1fr) 1.1rem;
  align-items: center;
  gap: 0.55rem;
  padding: 0.95rem 1rem;
  cursor: pointer;
  list-style: none;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ky-night);
  transition: background 0.2s var(--ky-ease);
}

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

.page-faq .faq-item__summary:hover {
  background: rgba(15, 107, 92, 0.07);
}

.page-faq .faq-item__num {
  font-size: 0.8rem;
  color: var(--ky-green);
}

.page-faq .faq-item__chev {
  width: 0.55rem;
  height: 0.55rem;
  justify-self: end;
  border-right: 2px solid var(--ky-green);
  border-bottom: 2px solid var(--ky-green);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ky-ease);
}

.page-faq .faq-item[open] .faq-item__chev {
  transform: rotate(-135deg);
}

.page-faq .faq-item__body {
  padding: 0 1rem 1.15rem;
}

.page-faq .faq-tri {
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-tri__row {
  display: grid;
  gap: 0.15rem;
  padding: 0.5rem 0.85rem;
  border-left: 3px solid var(--faq-phenom);
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--ky-night);
}

.page-faq .faq-tri__row--phenom {
  border-left-color: var(--faq-phenom);
}

.page-faq .faq-tri__row--cause {
  border-left-color: var(--faq-cause);
}

.page-faq .faq-tri__row--do {
  border-left-color: var(--faq-do);
  background: rgba(22, 147, 126, 0.09);
}

.page-faq .faq-tri__label {
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--ky-green);
}

.page-faq .faq-tri__text {
  color: var(--ky-night);
}

/* ---------- 兼容性表格 ---------- */
.page-faq .faq-compat {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 1px solid rgba(243, 234, 223, 0.22);
  border-radius: var(--ky-radius);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 0.93rem;
}

.page-faq .faq-table caption {
  caption-side: top;
  text-align: left;
  padding: 0.85rem 1rem;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ky-green-mist);
  border-bottom: 1px solid rgba(243, 234, 223, 0.18);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(243, 234, 223, 0.14);
  vertical-align: top;
}

.page-faq .faq-table thead th {
  background: rgba(22, 17, 14, 0.45);
  color: var(--ky-paper);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}

.page-faq .faq-table tbody th {
  font-weight: 600;
  color: var(--ky-paper);
}

.page-faq .faq-table tbody td {
  color: rgba(243, 234, 223, 0.84);
}

.page-faq .faq-table tbody tr {
  transition: background 0.18s var(--ky-ease);
}

.page-faq .faq-table tbody tr:hover {
  background: rgba(22, 147, 126, 0.18);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-ok {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  color: var(--ky-paper);
}

.page-faq .faq-ok::before {
  content: "";
  flex: none;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--ky-green-bright);
  transform: translateY(-1px);
}

.page-faq .faq-compat__fig {
  margin: 0;
  border: 1px solid var(--ky-line-strong);
  border-radius: var(--ky-radius);
  overflow: hidden;
  background: var(--ky-night);
}

/* ---------- 顺手问答 ---------- */
.page-faq .faq-quick {
  display: grid;
  gap: 1rem;
}

.page-faq .faq-quick__card {
  padding: 1.1rem 1.15rem 1.2rem;
  border: 1px solid var(--ky-line);
  border-top: 3px solid var(--ky-green-bright);
  background: rgba(243, 234, 223, 0.045);
  border-radius: var(--ky-radius);
  transition: transform 0.25s var(--ky-ease), border-color 0.25s var(--ky-ease), background 0.25s var(--ky-ease);
}

.page-faq .faq-quick__card:hover {
  transform: translateY(-2px);
  border-top-color: var(--ky-orange);
  background: rgba(243, 234, 223, 0.07);
}

.page-faq .faq-quick__q {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ky-paper);
}

.page-faq .faq-quick__a {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.72;
  color: rgba(243, 234, 223, 0.8);
}

.page-faq .faq-copy-row {
  margin: 0.85rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.page-faq .faq-copy-row__code {
  font-size: 0.8rem;
  padding: 0.35rem 0.6rem;
  border: 1px dashed var(--ky-line-strong);
  border-radius: var(--ky-radius);
  color: var(--ky-green-mist);
}

.page-faq .faq-quick__more {
  margin: 2rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: 1.75rem;
}

.page-faq .faq-support__index {
  color: var(--ky-green-mist);
}

.page-faq .faq-support__title {
  color: var(--ky-paper);
}

.page-faq .faq-support__text {
  margin: 1rem 0 0;
  max-width: 52ch;
  font-size: 1rem;
  line-height: 1.78;
  color: rgba(243, 234, 223, 0.86);
}

.page-faq .faq-support__actions {
  margin: 1.5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-faq .faq-support__contact {
  padding: 1.25rem 1.15rem;
  border: 1px solid rgba(243, 234, 223, 0.28);
  border-left: 4px solid var(--ky-orange);
  border-radius: var(--ky-radius);
  background: rgba(22, 17, 14, 0.22);
}

.page-faq .faq-support__contact .ky-contact__label {
  color: var(--ky-green-mist);
}

.page-faq .faq-support__contact .ky-contact__value {
  color: var(--ky-paper);
}

.page-faq .faq-support__contact .ky-contact__row > .ky-copy {
  margin-top: 0.35rem;
}

.page-faq .faq-support__note {
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--ky-line);
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(243, 234, 223, 0.72);
}

/* ---------- 响应式 ---------- */
@media (max-width: 959px) {
  .page-faq .faq-toc__list {
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    overflow-x: auto;
    gap: 0.5rem;
    padding-bottom: 0.4rem;
    scrollbar-width: thin;
  }

  .page-faq .faq-toc__link {
    border: 1px solid rgba(46, 36, 29, 0.2);
    border-left-width: 2px;
    border-radius: 999px;
    padding: 0.4rem 0.85rem;
    white-space: nowrap;
  }
}

@media (min-width: 780px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -0.6rem;
    width: 0.95rem;
    height: 2px;
    background: var(--ky-green-mist);
    opacity: 0.55;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-faq .faq-compat {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: 2rem;
  }

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 6.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-step__node,
  .page-faq .faq-quick__card,
  .page-faq .faq-item__chev {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-quick__card:hover {
    transform: none;
  }
}
<<<END>>>