.page-faq {
  --faq-card: var(--ink-800);
  --faq-rule: rgba(169, 182, 201, .16);
  --faq-cyan-line: rgba(53, 225, 214, .3);
  --faq-radius: 0;
  padding-bottom: 40px;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 34px;
  border-bottom: 2px solid var(--ink-700);
  background:
    radial-gradient(120% 100% at 84% 0%, rgba(53, 225, 214, .13), transparent 58%),
    radial-gradient(90% 80% at 4% 100%, rgba(255, 106, 43, .1), transparent 62%);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(30px, 7.4vw, 62px);
  font-weight: 200;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--warm-white);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist-blue);
}

.page-faq .faq-hero__board {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 18px;
  border: 2px solid var(--ink-700);
  border-left: 4px solid var(--pulse-orange);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero__board-num {
  font-family: var(--font-mono);
  font-size: clamp(34px, 8vw, 52px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--pulse-cyan);
}

.page-faq .faq-hero__board-txt {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .08em;
  color: var(--mist-blue);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding-top: 26px;
}

.page-faq .faq-index {
  border: 2px solid var(--ink-700);
  background: var(--ink-800);
  padding: 14px 14px 10px;
}

.page-faq .faq-index__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--pulse-cyan);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  font-size: 14px;
  white-space: nowrap;
  color: var(--warm-white);
  text-decoration: none;
  border: 1px solid var(--ink-700);
  background: var(--ink-900);
  transition: color 140ms var(--ease), border-color 140ms var(--ease), background-color 140ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--pulse-cyan);
  border-color: var(--pulse-cyan);
  background: var(--ink-700);
  outline: none;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--pulse-orange);
}

/* ---------- 区块节奏 ---------- */
.page-faq .faq-sec {
  padding: 30px 0;
  border-top: 2px solid var(--ink-800);
  scroll-margin-top: 92px;
}

.page-faq .faq-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-sec--last {
  padding-bottom: 0;
}

.page-faq .faq-sec .section__title {
  font-size: clamp(22px, 4.4vw, 32px);
  line-height: 1.24;
}

.page-faq .faq-sec .section__lede {
  max-width: 66ch;
  color: var(--mist-blue);
}

/* ---------- 文档分类卡 ---------- */
.page-faq .doc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.page-faq .doc-card {
  position: relative;
  padding: 20px 18px 18px;
  border: 2px solid var(--ink-700);
  background: var(--faq-card);
  box-shadow: var(--shadow-hard);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .doc-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 42px;
  height: 4px;
  background: var(--pulse-cyan);
}

.page-faq .doc-card:hover {
  transform: translateY(-4px);
  border-color: var(--pulse-cyan);
}

.page-faq .doc-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--pulse-orange);
}

.page-faq .doc-card__title {
  margin: 10px 0 4px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--warm-white);
}

.page-faq .doc-card__count {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--pulse-cyan);
}

.page-faq .doc-card__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-blue);
}

.page-faq .doc-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.page-faq .doc-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--warm-white);
}

.page-faq .doc-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 8px;
  height: 2px;
  background: var(--cyan-deep);
}

/* ---------- 媒体 ---------- */
.page-faq .faq-media {
  margin: 26px 0 0;
}

.page-faq .faq-media .media__frame {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--ink-700);
  background: var(--ink-800);
}

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

.page-faq .faq-media .media__cap {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-blue);
}

/* ---------- 步骤序列 ---------- */
.page-faq .steps {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  position: relative;
  padding: 0 0 26px 54px;
}

.page-faq .step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 34px;
  height: 34px;
  background: var(--pulse-orange);
  border: 2px solid var(--ink-950);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, .35);
}

.page-faq .step::after {
  content: "";
  position: absolute;
  left: 16px;
  top: 40px;
  bottom: 4px;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--faq-cyan-line) 0 6px, transparent 6px 13px);
}

.page-faq .step:last-child {
  padding-bottom: 0;
}

.page-faq .step:last-child::after {
  display: none;
}

.page-faq .step__title {
  margin: 3px 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--warm-white);
}

.page-faq .step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-blue);
}

/* ---------- 桌面 / 移动对照 ---------- */
.page-faq .note-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 22px;
}

.page-faq .note-pair__cell {
  padding: 16px 18px;
  border: 2px solid var(--ink-700);
  border-top: 4px solid var(--cyan-deep);
  background: var(--ink-800);
}

.page-faq .note-pair__k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--pulse-cyan);
}

.page-faq .note-pair__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist-blue);
}

/* ---------- 加载排查分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 4px;
}

.page-faq .steps--compact .step {
  padding-bottom: 20px;
}

.page-faq .faq-aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .faq-aside .faq-media {
  margin-top: 0;
}

.page-faq .faq-aside__note {
  padding: 16px 18px;
  border: 2px dashed var(--ink-700);
  background: linear-gradient(160deg, rgba(17, 28, 49, .96), rgba(11, 18, 32, .96));
}

.page-faq .faq-aside__note-k {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--orange-soft);
}

.page-faq .faq-aside__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.page-faq .faq-aside__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--warm-white);
}

.page-faq .faq-aside__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--pulse-cyan);
}

/* ---------- 日历卡片 ---------- */
.page-faq .cal-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 24px;
}

.page-faq .cal-card {
  padding: 18px 18px 16px;
  border: 2px solid var(--ink-700);
  border-left: 2px solid var(--ink-700);
  background: var(--ink-800);
  transition: transform 180ms var(--ease), border-left-color 180ms var(--ease);
}

.page-faq .cal-card:hover {
  transform: translateX(6px);
  border-left-color: var(--pulse-orange);
}

.page-faq .cal-card__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--pulse-orange);
}

.page-faq .cal-card__title {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--warm-white);
}

.page-faq .cal-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist-blue);
}

.page-faq .faq-inline-note {
  margin: 22px 0 0;
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-blue);
  border-left: 4px solid var(--pulse-cyan);
  background: var(--ink-800);
}

/* ---------- 手风琴问答 ---------- */
.page-faq .qa-list {
  margin-top: 24px;
  display: grid;
  gap: 10px;
}

.page-faq .qa {
  border: 2px solid var(--ink-700);
  background: var(--ink-800);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .qa[open] {
  border-color: var(--cyan-deep);
  transform: translateY(-2px);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--warm-white);
  transition: color 140ms var(--ease), background-color 140ms var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--pulse-cyan);
}

.page-faq .qa[open] .qa__q::after {
  content: "\2013";
}

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--pulse-cyan);
  background: var(--ink-700);
  outline: none;
}

.page-faq .qa__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--pulse-orange);
}

.page-faq .qa__a {
  padding: 0 16px 16px 52px;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .qa__a p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist-blue);
}

.page-faq .qa__next {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
}

.page-faq .qa__next a {
  color: var(--pulse-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-cyan-line);
}

.page-faq .qa__next a:hover,
.page-faq .qa__next a:focus-visible {
  color: var(--pulse-orange);
  border-bottom-color: var(--pulse-orange);
  outline: none;
}

/* ---------- 联系区块 ---------- */
.page-faq .help-out {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 24px;
  padding: 22px 18px;
  border: 2px solid var(--pulse-orange);
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(255, 106, 43, .12), transparent 60%),
    var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-faq .help-out__channels {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .help-out__row {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .help-out__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .help-out__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist-blue);
}

.page-faq .help-out__v {
  font-size: 16px;
  line-height: 1.55;
  color: var(--warm-white);
  word-break: break-word;
}

.page-faq .help-out__checklist {
  padding: 16px 16px 18px;
  border: 1px solid var(--ink-700);
  background: var(--ink-900);
}

.page-faq .help-out__checklist-k {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--pulse-cyan);
}

.page-faq .help-out__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.page-faq .help-out__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--warm-white);
}

.page-faq .help-out__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 8px;
  height: 8px;
  border: 2px solid var(--orange-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 40px 0 46px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 32px;
  }

  .page-faq .doc-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .doc-card:nth-child(even) {
    margin-top: 22px;
  }

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

  .page-faq .cal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .help-out {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 28px;
    padding: 26px 24px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 48px;
    padding-top: 34px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__link {
    width: 100%;
    border-color: transparent;
    background: transparent;
    border-left: 2px solid transparent;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--pulse-cyan);
    background: var(--ink-700);
  }

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

  .page-faq .faq-sec {
    padding: 40px 0;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: start;
  }

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

  .page-faq .qa__a {
    padding-left: 58px;
    padding-right: 28px;
  }

  .page-faq .faq-media .media__frame {
    overflow: hidden;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero {
    padding: 52px 0 58px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .doc-card,
  .page-faq .cal-card,
  .page-faq .qa,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .doc-card:hover,
  .page-faq .cal-card:hover,
  .page-faq .qa[open] {
    transform: none;
  }
}