.page-faq {
  background: var(--deep);
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding: 18px 0 0;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 54px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -70px;
  width: min(680px, 78%);
  height: 220px;
  background: var(--night);
  transform: skewX(-13deg);
  opacity: .9;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  top: 64%;
  width: 88px;
  height: 3px;
  background: var(--lava);
  pointer-events: none;
  z-index: 1;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 34px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-size: clamp(34px, 7.4vw, 54px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 44ch;
  color: var(--mist);
  font-size: 16.5px;
  line-height: 1.85;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

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

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

.page-faq .faq-hero-media::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 38%;
  height: 3px;
  background: var(--cyan);
}

.page-faq .faq-hero-media .media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 34px 18px 14px;
  background: rgba(6, 26, 46, .82);
  color: var(--mist);
  font-size: 12.5px;
  line-height: 1.6;
}

/* ---------- 三步流程 ---------- */
.page-faq .faq-steps {
  padding: 52px 0 12px;
}

.page-faq .faq-steps .section-head {
  max-width: 62ch;
  margin-bottom: 30px;
}

.page-faq .faq-steps .section-note {
  margin-top: 12px;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .faq-step-grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-step {
  position: relative;
  padding: 26px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--night);
  overflow: hidden;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  width: 46px;
  height: 3px;
  background: var(--cyan);
}

.page-faq .faq-step:nth-child(2)::before {
  background: var(--cyan-soft);
}

.page-faq .faq-step:nth-child(3)::before {
  background: var(--lava);
}

.page-faq .faq-step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--cyan);
  background: var(--deep);
}

.page-faq .faq-step:nth-child(3) .faq-step-icon {
  color: var(--lava);
}

.page-faq .faq-step-num {
  margin: 16px 0 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-faq .faq-step-title {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.page-faq .faq-step-text {
  margin: 10px 0 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 标签页 ---------- */
.page-faq .faq-topics {
  padding: 56px 0 20px;
}

.page-faq .faq-topics .section-head {
  max-width: 60ch;
  margin-bottom: 26px;
}

.page-faq .faq-topics .section-note {
  margin-top: 12px;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .tab-list {
  display: flex;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .tab-list::-webkit-scrollbar {
  display: none;
}

.page-faq .tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 10px 17px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--night);
  color: var(--white);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .tab:hover {
  border-color: var(--cyan);
  color: var(--cyan-soft);
}

.page-faq .tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--deep);
}

.page-faq .tab:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 3px;
}

.page-faq .tab-panel {
  padding-top: 26px;
}

.page-faq .tab-panel[hidden] {
  display: none;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
  max-width: 880px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--night);
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--lava);
  background: var(--graphite);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-head);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--r-sm);
}

.page-faq .faq-num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--mist);
}

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

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-ind {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 6px;
}

.page-faq .faq-ind::before,
.page-faq .faq-ind::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

.page-faq .faq-ind::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-faq .faq-ind::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

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

.page-faq .faq-a {
  padding: 0 18px 20px;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .faq-a p {
  margin: 0;
}

.page-faq .faq-panel-media {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--night);
}

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

.page-faq .faq-panel-media .media-caption {
  padding: 12px 18px 14px;
  color: var(--mist);
  font-size: 12.5px;
  line-height: 1.6;
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  padding: 48px 0 16px;
}

.page-faq .faq-support-card {
  position: relative;
  padding: 30px 22px 32px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--night);
  overflow: hidden;
}

.page-faq .faq-support-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--lava);
}

.page-faq .faq-support-head {
  max-width: 62ch;
}

.page-faq .faq-support-note {
  margin: 12px 0 0;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .faq-support-grid {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.page-faq .faq-support-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--deep);
}

.page-faq .faq-support-label {
  margin: 0;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-faq .faq-support-value {
  margin: 8px 0 0;
  color: var(--white);
  font-size: 16px;
  line-height: 1.6;
  word-break: break-word;
}

/* ---------- 常用入口 ---------- */
.page-faq .faq-more {
  padding: 44px 0 72px;
}

.page-faq .faq-more .section-head {
  margin-bottom: 24px;
}

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

.page-faq .faq-link-list a {
  display: block;
  position: relative;
  padding: 20px 46px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--night);
  color: var(--white);
  text-decoration: none;
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-link-list a::after {
  content: "→";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 18px;
  color: var(--lava);
  transition: transform .22s var(--ease);
}

.page-faq .faq-link-list a:hover {
  border-color: var(--cyan);
  transform: translateX(3px);
}

.page-faq .faq-link-list a:hover::after {
  transform: translateY(-50%) translateX(4px);
}

.page-faq .faq-link-list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-link-title {
  display: block;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-link-note {
  display: block;
  margin-top: 6px;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 36px 0 68px;
  }

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

  .page-faq .faq-a {
    padding-left: 54px;
    padding-right: 24px;
  }

  .page-faq .faq-item > summary {
    padding: 18px 22px;
    font-size: 17px;
  }

  .page-faq .faq-support-card {
    padding: 40px 40px 42px;
  }

  .page-faq .faq-support-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 32px;
  }

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

/* ---------- 桌面端 ---------- */
@media (min-width: 980px) {
  .page-faq .breadcrumb {
    padding-top: 24px;
  }

  .page-faq .faq-hero-inner {
    grid-template-columns: 7fr 5fr;
    align-items: center;
    gap: 52px;
  }

  .page-faq .faq-step-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .page-faq .faq-topics {
    padding-top: 68px;
  }

  .page-faq .tab-list {
    flex-wrap: wrap;
    gap: 10px;
  }

  .page-faq .faq-support {
    padding-top: 56px;
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    transform: none !important;
  }
}