/* ============================================================
   支持中心 / Support desk
   ============================================================ */
.page-faq {
  --faq-panel-bg: rgba(18, 48, 94, .42);
  --faq-panel-line: rgba(0, 229, 255, .18);
  --faq-tile-bg: linear-gradient(160deg, rgba(18, 48, 94, .92), rgba(10, 31, 68, .94));
  --faq-tile-bg-on: linear-gradient(160deg, rgba(255, 107, 53, .18), rgba(10, 31, 68, .96));
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(26px, 4.5vw, 52px) clamp(30px, 5vw, 60px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto 38%;
  height: 460px;
  pointer-events: none;
  background:
    radial-gradient(58% 76% at 74% 22%, rgba(0, 229, 255, .16), transparent 70%),
    radial-gradient(52% 68% at 26% 64%, rgba(255, 107, 53, .13), transparent 72%);
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 16px;
  margin-top: clamp(18px, 3vw, 34px);
  max-width: 940px;
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(2rem, 5.6vw, 4.1rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--white);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 64ch;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .faq-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-metric {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 16px;
  background: rgba(10, 31, 68, .78);
}

.page-faq .faq-metric__num {
  font-family: var(--font-data);
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-metric__label {
  font-size: .8125rem;
  letter-spacing: .06em;
  color: var(--graphite);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-desk {
  padding-block: clamp(20px, 3.4vw, 40px) clamp(36px, 5vw, 68px);
}

.page-faq .faq-tabs {
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .faq-cats-row {
  display: grid;
  gap: 18px;
}

.page-faq .faq-cats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-cat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  min-height: 96px;
  padding: 15px 16px;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  color: var(--text);
  background: var(--faq-tile-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--inner-top);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-cat:hover {
  border-color: var(--line-cyan);
  transform: translateY(-2px);
}

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

.page-faq .faq-cat[aria-selected="true"] {
  background: var(--faq-tile-bg-on);
  border-color: var(--orange);
}

.page-faq .faq-cat--wide {
  grid-column: span 2;
}

.page-faq .faq-cat__idx {
  font-family: var(--font-data);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-faq .faq-cat__name {
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--white);
}

.page-faq .faq-cat__note {
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--graphite);
}

.page-faq .faq-cats__media {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-cats__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-cats__media .media__cap {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 2;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-panels {
  margin-top: clamp(22px, 3.4vw, 38px);
}

.page-faq .faq-panel {
  display: none;
}

.page-faq .faq-panel.is-active {
  display: block;
  animation: faqPanelIn var(--dur) var(--ease) both;
}

@keyframes faqPanelIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-panel__lede {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-faq .faq-item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 31, 68, .55);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item[open] {
  border-color: var(--faq-panel-line);
  background: rgba(10, 31, 68, .86);
}

.page-faq .faq-item[open]::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), rgba(0, 229, 255, .06));
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 52px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--text);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--white);
}

.page-faq .faq-item__q::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: auto;
  margin-top: 7px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg);
  margin-top: 11px;
}

.page-faq .faq-item__idx {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-data);
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .faq-item__a {
  padding: 14px 16px 18px 42px;
  border-top: 1px solid var(--line);
  background: var(--faq-panel-bg);
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 底部求助 ---------- */
.page-faq .faq-help {
  padding-block: clamp(26px, 4vw, 46px) clamp(44px, 6vw, 84px);
}

.page-faq .faq-tick {
  height: 22px;
  margin-bottom: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line-strong);
  background-image: linear-gradient(90deg, rgba(166, 178, 194, .34) 0 1px, transparent 1px);
  background-size: 24px 7px;
  background-repeat: repeat-x;
}

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

.page-faq .faq-help__title {
  margin: 10px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.2vw, 2.5rem);
  font-weight: 700;
  line-height: 1.16;
  color: var(--white);
}

.page-faq .faq-help__main .content-body {
  max-width: 60ch;
}

.page-faq .faq-help__tip {
  margin: 20px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--orange);
  background: rgba(255, 107, 53, .08);
  font-size: .875rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-faq .faq-contact {
  margin: 22px 0 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  background: rgba(10, 31, 68, .78);
}

.page-faq .faq-contact dt {
  font-family: var(--font-data);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--graphite);
}

.page-faq .faq-contact dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: .9375rem;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-help__links {
  margin: 20px 0 0;
  font-size: .875rem;
  line-height: 1.78;
  color: var(--graphite);
}

.page-faq .faq-help__links a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-help__media {
  position: relative;
  margin: 0;
  aspect-ratio: 5 / 3;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-help__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-help__media .media__cap {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 2;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-cat {
    min-height: 108px;
    padding: 17px 18px;
  }

  .page-faq .faq-item__a {
    padding: 16px 22px 20px 46px;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-cats-row {
    grid-template-columns: minmax(0, 1.92fr) minmax(0, 1fr);
    align-items: stretch;
  }

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

  .page-faq .faq-cats__media {
    aspect-ratio: auto;
    height: 100%;
    min-height: 300px;
  }

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

  .page-faq .faq-help__media {
    aspect-ratio: 5 / 4;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-item,
  .page-faq .faq-item__q::after {
    transition: none;
  }

  .page-faq .faq-cat:hover {
    transform: none;
  }

  .page-faq .faq-panel.is-active {
    animation: none;
  }
}
<<<END>>>