/* ===== 问题排查页 page-faq ===== */
.page-faq {
  --idx-w: 216px;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--ink-900);
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% 50%;
  opacity: .38;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(180deg, rgba(5, 20, 15, .55) 0%, rgba(5, 20, 15, .93) 78%, var(--ink-900) 100%),
    linear-gradient(100deg, rgba(5, 20, 15, .95) 6%, rgba(5, 20, 15, .25) 76%),
    repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, var(--line-soft) 0 1px, transparent 1px 64px);
}

.page-faq .faq-hero__inner {
  position: relative;
  padding: 52px 0 46px;
}

.page-faq .faq-hero__inner .breadcrumb {
  margin-bottom: 18px;
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.012em;
  color: var(--text-1);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 38em;
  font-size: var(--fs-body);
  line-height: 1.72;
  color: var(--text-2);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: 34px 0 76px;
}

.page-faq .faq-body {
  min-width: 0;
  max-width: 820px;
}

/* ---------- 索引列 ---------- */
.page-faq .faq-index__label {
  margin: 0 0 12px;
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
  color: var(--text-2);
  font-size: var(--fs-sm);
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text-1);
  border-color: var(--line-cyan);
  background: var(--ink-700);
}

.page-faq .faq-index__no {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--clay);
}

/* ---------- 问答块 ---------- */
.page-faq .qa {
  position: relative;
  padding: 30px 0 34px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

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

.page-faq .qa__title {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -.006em;
  color: var(--text-1);
}

.page-faq .qa__no {
  flex: 0 0 auto;
  margin-top: 6px;
  padding: 2px 6px;
  border: 1px solid rgba(201, 111, 74, .48);
  border-radius: 2px;
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .08em;
  color: var(--clay);
}

.page-faq .qa__lead {
  margin: 16px 0 0;
  max-width: 36em;
  font-size: var(--fs-body);
  line-height: 1.72;
  color: var(--text-2);
}

.page-faq .qa__steps {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: qastep;
}

.page-faq .qa__steps > li {
  position: relative;
  padding-left: 42px;
  font-size: var(--fs-body);
  line-height: 1.72;
  color: var(--text-2);
  counter-increment: qastep;
}

.page-faq .qa__steps > li::before {
  content: counter(qastep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  padding: 1px 5px;
  border: 1px solid var(--line-cyan);
  border-radius: 2px;
  font-family: var(--font-num);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-faq .qa__steps a,
.page-faq .qa__aside-link a,
.page-faq .fold__body a,
.page-faq .support-card__value a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid var(--line-ice);
}

.page-faq .qa__steps a:hover,
.page-faq .qa__aside-link a:hover,
.page-faq .fold__body a:hover,
.page-faq .support-card__value a:hover {
  color: var(--cyan);
  border-bottom-color: var(--line-cyan);
}

.page-faq .qa__aside-link {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: var(--fs-sm);
  line-height: 1.72;
  color: var(--text-3);
}

/* ---------- 折叠面板 ---------- */
.page-faq .fold {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-faq .fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--text-2);
  cursor: pointer;
  list-style: none;
}

.page-faq .fold > summary::-webkit-details-marker {
  display: none;
}

.page-faq .fold > summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 16px;
  color: var(--cyan);
}

.page-faq .fold[open] > summary::after {
  content: "\2212";
}

.page-faq .fold > summary:hover,
.page-faq .fold > summary:focus-visible {
  color: var(--text-1);
  border-color: var(--line-cyan);
}

.page-faq .fold__body {
  padding: 0 16px 16px;
  max-width: 40em;
}

.page-faq .fold__body p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: var(--text-3);
}

/* ---------- 扣费顺序流程图 ---------- */
.page-faq .fee-flow-wrap {
  margin-top: 22px;
  padding: 10px 8px 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900));
  overflow-x: auto;
}

.page-faq .fee-flow {
  display: block;
  width: 100%;
  min-width: 540px;
  height: auto;
}

.page-faq .fee-flow__node rect {
  fill: rgba(23, 58, 44, .72);
  stroke: var(--line-cyan);
  stroke-width: 1;
}

.page-faq .fee-flow text {
  fill: var(--text-1);
  font-family: var(--font-body);
  font-size: 14px;
  text-anchor: middle;
}

.page-faq .fee-flow .fee-flow__sub {
  fill: var(--text-3);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .04em;
}

.page-faq .fee-flow__arrow {
  fill: none;
  stroke: var(--line-cyan);
  stroke-width: 1.5;
}

.page-faq .fee-flow__head {
  fill: var(--cyan);
}

/* ---------- 费用周期 ---------- */
.page-faq .cycle-layout {
  display: grid;
  gap: 20px;
  margin-top: 24px;
}

.page-faq .cycle-rates {
  display: grid;
  gap: 10px;
}

.page-faq .cycle-rate {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 18px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-amber);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-faq .cycle-rate--season {
  border-left-color: var(--cyan);
}

.page-faq .cycle-rate__label {
  grid-column: 1;
  grid-row: 1;
  margin: 0 0 4px;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--text-3);
}

.page-faq .cycle-rate__desc {
  grid-column: 1;
  grid-row: 2;
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--text-2);
}

.page-faq .cycle-rate__value {
  grid-column: 2;
  grid-row: 1 / span 2;
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin: 0;
}

.page-faq .cycle-rate__num {
  font-family: var(--font-num);
  font-size: clamp(34px, 7vw, 52px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .cycle-rate__unit {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--amber);
  opacity: .8;
}

.page-faq .cycle-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow: hidden;
}

.page-faq .cycle-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 800 / 480;
  object-fit: cover;
}

.page-faq .cycle-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--text-3);
}

/* ---------- 联系支持 ---------- */
.page-faq .support-grid {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .support-card {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-top: 2px solid rgba(79, 240, 200, .5);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-faq .support-card__label {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--clay);
}

.page-faq .support-card__value {
  margin: 0;
  font-family: var(--font-num);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-1);
  overflow-wrap: anywhere;
}

.page-faq .support-card__note {
  margin: 9px 0 0;
  font-size: var(--fs-sm);
  line-height: 1.62;
  color: var(--text-3);
}

.page-faq .qa-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 26px;
  padding: 18px 20px;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  background:
    linear-gradient(118deg, rgba(79, 240, 200, .09), rgba(79, 240, 200, 0) 62%),
    var(--ink-800);
}

.page-faq .qa-cta p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--text-2);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .support-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hero__inner {
    padding: 70px 0 60px;
  }
}

@media (min-width: 900px) {
  .page-faq .cycle-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
    gap: 26px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero__inner {
    padding: 96px 0 78px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--idx-w) minmax(0, 1fr);
    gap: 56px;
    padding: 60px 0 108px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
    align-self: start;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    padding: 0;
    overflow: visible;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-index__link {
    margin-left: -1px;
    padding: 10px 12px 10px 15px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: transparent;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--cyan);
    background: var(--ink-800);
  }

  .page-faq .qa {
    padding: 42px 0 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .fold > summary {
    transition: none;
  }
}
<<<END>>>