.page-faq {
  --faq-line: rgba(42, 52, 104, .9);
  --faq-panel: rgba(21, 27, 61, .62);
  --faq-tint: rgba(21, 27, 61, .38);
  display: block;
  background: var(--deep-space);
  color: var(--star-white);
}

.page-faq p {
  margin: 0;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 22px 0 38px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -45%;
  right: -18%;
  width: 78%;
  height: 190%;
  background: linear-gradient(140deg, rgba(123, 92, 255, .34), rgba(58, 46, 122, .12) 52%, rgba(0, 224, 198, .13));
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 76%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 52, 104, .32) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 52, 104, .32) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .75), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .75), transparent 78%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(29px, 7.2vw, 54px);
  line-height: 1.15;
  letter-spacing: .02em;
}

.page-faq .faq-hero .lede {
  max-width: 62ch;
  color: var(--mist-blue);
  font-size: 16px;
  line-height: 1.85;
}

.page-faq .faq-hero__aside {
  padding: 6px 0 6px 16px;
  border-left: 2px solid var(--nebula-cyan);
  max-width: 430px;
}

.page-faq .faq-hero__mono {
  margin-bottom: 8px;
  color: var(--nebula-cyan);
  font-size: 13px;
  letter-spacing: .08em;
}

.page-faq .faq-hero__note {
  color: var(--mist-blue);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 类别索引 ---------- */

.page-faq .faq-index {
  background: rgba(5, 8, 15, .55);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 10px 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  white-space: nowrap;
  color: var(--mist-blue);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--star-white);
  border-bottom-color: var(--nebula-cyan);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--galaxy-violet);
}

/* ---------- 分区 ---------- */

.page-faq .faq-section {
  padding: 40px 0 44px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-section--rules,
.page-faq .faq-section--account {
  background: linear-gradient(180deg, var(--faq-tint), rgba(11, 16, 38, 0) 80%);
}

.page-faq .faq-section--ticket {
  padding-bottom: 58px;
  border-bottom: 0;
  background: linear-gradient(180deg, rgba(5, 8, 15, .88), rgba(11, 16, 38, 0));
}

.page-faq .faq-section__head {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.page-faq .faq-coord {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--galaxy-violet);
}

.page-faq .faq-section__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 4.6vw, 32px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .01em;
}

.page-faq .faq-section__lede {
  max-width: 64ch;
  color: var(--mist-blue);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .faq-section__lede a {
  color: var(--nebula-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 224, 198, .45);
}

.page-faq .faq-section__lede a:hover,
.page-faq .faq-section__lede a:focus-visible {
  border-bottom-color: var(--nebula-cyan);
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: 0 0 28px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-line);
  filter: saturate(1.05);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
}

/* ---------- 问答列表 ---------- */

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

.page-faq .q-item {
  padding-left: 12px;
  border-bottom: 1px solid var(--faq-line);
  border-left: 2px solid transparent;
  transition: border-left-color .25s var(--ease), background-color .25s var(--ease);
}

.page-faq .q-item:hover {
  border-left-color: rgba(0, 224, 198, .55);
  background: rgba(0, 224, 198, .035);
}

.page-faq .q-item:has(.accordion-trigger[aria-expanded="true"]) {
  border-left-color: var(--nebula-cyan);
}

.page-faq .q-head {
  margin: 0;
  font-size: inherit;
  font-weight: 400;
}

.page-faq .accordion-trigger {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 10px;
  align-items: start;
  width: 100%;
  padding: 16px 6px 16px 0;
  background: none;
  border: 0;
  color: var(--star-white);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
}

.page-faq .accordion-trigger:focus-visible {
  outline: 2px solid var(--nebula-cyan);
  outline-offset: 2px;
}

.page-faq .q-num {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--galaxy-violet);
  transition: color .25s var(--ease);
}

.page-faq .accordion-trigger:hover .q-num,
.page-faq .accordion-trigger[aria-expanded="true"] .q-num {
  color: var(--warm-gold);
}

.page-faq .accordion-panel-inner {
  max-width: 64ch;
  padding: 0 6px 20px 0;
  color: var(--mist-blue);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .accordion-panel-inner p {
  margin-bottom: 10px;
}

.page-faq .accordion-panel-inner p:last-child {
  margin-bottom: 0;
}

/* ---------- 三步规则 ---------- */

.page-faq .flow {
  display: grid;
  gap: 12px;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}

.page-faq .flow-node {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--faq-panel);
  border-left: 2px solid var(--galaxy-violet);
}

.page-faq .flow-node__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--warm-gold);
}

.page-faq .flow-node__label {
  font-size: 15px;
  font-weight: 600;
}

.page-faq .flow-node__hint {
  margin-left: auto;
  color: var(--mist-blue);
  font-size: 13px;
  letter-spacing: .02em;
}

/* ---------- 显示排查路径 ---------- */

.page-faq .steps-path {
  position: relative;
  margin: 0 0 28px;
  padding: 0 0 0 22px;
  list-style: none;
}

.page-faq .steps-path::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--nebula-cyan), var(--galaxy-violet) 70%, rgba(123, 92, 255, 0));
}

.page-faq .steps-path__item {
  position: relative;
  padding-bottom: 20px;
}

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

.page-faq .steps-path__dot {
  position: absolute;
  left: -22px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--nebula-cyan);
  background: var(--deep-space);
}

.page-faq .steps-path__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-faq .steps-path__body {
  max-width: 64ch;
  color: var(--mist-blue);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 工单 ---------- */

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

.page-faq .ticket-needs {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .ticket-needs li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 10px;
  padding: 15px 0;
  border-bottom: 1px solid var(--faq-line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--star-white);
}

.page-faq .ticket-needs .mono {
  padding-top: 3px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--galaxy-violet);
}

.page-faq .ticket-side {
  padding: 20px 20px 24px;
  background: var(--faq-panel);
  border-left: 2px solid var(--warm-gold);
}

.page-faq .ticket-side__label {
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--warm-gold);
}

.page-faq .ticket-side p {
  margin-bottom: 12px;
  color: var(--mist-blue);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-faq .ticket-side .btn {
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 34px 0 48px;
  }

  .page-faq .accordion-trigger {
    grid-template-columns: 62px 1fr;
    font-size: 16.5px;
  }

  .page-faq .accordion-panel-inner {
    padding-left: 64px;
  }

  .page-faq .faq-section {
    padding: 52px 0 56px;
  }
}

@media (min-width: 760px) {
  .page-faq .flow {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
  }

  .page-faq .flow-node {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 16px 22px 4px 0;
    background: transparent;
    border-left: 0;
    border-top: 2px solid var(--galaxy-violet);
  }

  .page-faq .flow-node__hint {
    margin-left: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, .8fr);
    gap: 52px;
    align-items: end;
  }

  .page-faq .faq-section__head {
    grid-template-columns: 170px 1fr;
    column-gap: 38px;
  }

  .page-faq .faq-coord {
    grid-row: 1 / span 2;
    padding-top: 9px;
    border-top: 2px solid var(--galaxy-violet);
  }

  .page-faq .faq-section__head h2,
  .page-faq .faq-section__lede {
    grid-column: 2;
  }

  .page-faq .ticket-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 46px;
  }

  .page-faq .faq-figure {
    margin-bottom: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .q-item,
  .page-faq .q-num {
    transition: none;
  }
}