/* ============================================================
   问题排查 · page-faq
   ============================================================ */

.page-faq {
  --faq-rule: rgba(154, 163, 178, .18);
  --faq-item-bg: var(--surface);
  padding-bottom: 44px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-top: 20px;
  font-size: .84rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 44px;
  max-width: 960px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.95rem, 7.4vw, 3.55rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-faq .faq-hero__accent {
  display: inline-block;
  background: linear-gradient(94deg, var(--lilac) 6%, var(--cyan) 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: clamp(1rem, 2.4vw, 1.08rem);
  line-height: 1.8;
  color: var(--text-3);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 现象索引 ---------- */
.page-faq .faq-index {
  padding-top: 6px;
}

.page-faq .faq-index__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.6vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.2;
  color: var(--text);
}

.page-faq .faq-index__head .note {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--text-3);
}

.page-faq .faq-index__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 24px;
}

.page-faq .sym-wall {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

.page-faq .sym {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font-size: .9rem;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease, transform .2s ease;
}

.page-faq .sym::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--data-glow);
}

.page-faq .sym:hover,
.page-faq .sym:focus-visible {
  border-color: var(--line-cyan);
  background: var(--surface-hover);
  color: var(--lilac);
  transform: translateY(-2px);
}

.page-faq .faq-index__media {
  margin: 0;
}

.page-faq .faq-index__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  object-fit: cover;
}

/* ---------- 分组条目 ---------- */
.page-faq .faq-groups {
  margin-top: 44px;
  display: grid;
  gap: 0;
}

.page-faq .faq-group {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  padding: 28px 0 24px;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--cyan);
  text-shadow: 0 0 12px var(--data-glow);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 3.6vw, 1.5rem);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-faq .faq-group__items {
  display: grid;
  gap: 12px;
  min-width: 0;
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--faq-item-bg);
  overflow: hidden;
  transition: border-color .22s ease, background-color .22s ease;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .28s ease;
  box-shadow: 0 0 14px var(--data-glow);
}

.page-faq .faq-item[open] {
  background: var(--surface-2);
  border-color: var(--line-cyan);
}

.page-faq .faq-item[open]::before {
  transform: scaleY(1);
}

.page-faq .faq-item:hover {
  border-color: var(--card-border);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

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

.page-faq .faq-item__summary::marker {
  content: "";
}

.page-faq .faq-item__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--text-3);
  transition: color .2s ease;
}

.page-faq .faq-item[open] .faq-item__idx {
  color: var(--cyan);
}

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

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  margin-left: auto;
  width: 20px;
  height: 20px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

.page-faq .faq-item__sign::before {
  left: 0;
  right: 0;
  top: 9px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  top: 0;
  bottom: 0;
  left: 9px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 14px 16px 20px;
  border-top: 1px dashed var(--line);
}

/* ---------- 三步法 ---------- */
.page-faq .steps {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
}

.page-faq .steps li {
  position: relative;
  padding: 0 0 18px 32px;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--text-3);
}

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

.page-faq .steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 21px;
  height: 21px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-cyan);
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .68rem;
  line-height: 1;
}

.page-faq .steps li::after {
  content: "";
  position: absolute;
  left: 10px;
  top: 25px;
  bottom: 2px;
  width: 1px;
  background: linear-gradient(180deg, var(--line-cyan), rgba(0, 229, 255, 0));
}

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

/* ---------- 条目底部入口 ---------- */
.page-faq .faq-item__foot {
  margin: 18px 0 0;
}

.page-faq .faq-item__foot a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-brand);
  background: rgba(108, 43, 217, .16);
  color: var(--lilac);
  font-size: .86rem;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease;
}

.page-faq .faq-item__foot a::after {
  content: "→";
  font-size: .92em;
}

.page-faq .faq-item__foot a:hover,
.page-faq .faq-item__foot a:focus-visible {
  border-color: var(--line-cyan);
  background: rgba(0, 229, 255, .1);
  color: var(--cyan);
}

/* ---------- 客服收尾 ---------- */
.page-faq .faq-help {
  margin-top: 52px;
}

.page-faq .faq-help__card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-brand);
  background:
    linear-gradient(148deg, rgba(63, 21, 128, .58) 0%, rgba(11, 14, 20, .97) 64%),
    var(--ink);
  padding: 30px 20px 34px;
}

.page-faq .faq-help__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  pointer-events: none;
}

.page-faq .faq-help__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-help__inner h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4.4vw, 2.05rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.22;
  color: var(--snow);
}

.page-faq .faq-help__lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: .96rem;
  line-height: 1.8;
  color: var(--text-2);
}

.page-faq .faq-help .contact-list {
  margin-top: 22px;
}

.page-faq .faq-help .contact-item {
  border-top-color: rgba(201, 180, 248, .24);
}

.page-faq .faq-help .contact-item__key {
  color: var(--mist);
}

.page-faq .faq-help .contact-item__val {
  color: var(--snow);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-faq .faq-help__actions {
  margin-top: 26px;
}

/* ---------- 桌面与平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-index__body {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: 34px;
    align-items: start;
  }

  .page-faq .faq-group {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 26px;
  }

  .page-faq .faq-group__head {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-help__card {
    padding: 44px 38px 46px;
  }

  .page-faq .faq-item__summary {
    padding: 17px 20px;
  }

  .page-faq .faq-item__body {
    padding: 16px 20px 22px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-hero {
    padding: 40px 0 62px;
  }

  .page-faq .faq-groups {
    margin-top: 56px;
  }

  .page-faq .faq-group {
    grid-template-columns: 200px minmax(0, 1fr);
    padding: 36px 0 30px;
  }

  .page-faq .faq-index__body {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .72fr);
    gap: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item::before,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .sym {
    transition: none;
  }

  .page-faq .sym:hover,
  .page-faq .sym:focus-visible {
    transform: none;
  }
}
<<<END>>>