.page-faq {
  --faq-panel: #FCFAF4;
  --faq-line: rgba(14, 43, 76, 0.14);
  background: var(--haiou-white);
  color: var(--deep-blue);
}

.page-faq .faq-crumbs {
  padding-top: clamp(18px, 4vw, 32px);
}

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-faq .crumbs a {
  color: var(--gray-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(90, 107, 126, 0.4);
}

.page-faq .crumbs a:hover {
  color: var(--deep-blue);
  border-bottom-color: var(--brick-red);
}

.page-faq .crumbs__sep {
  color: var(--gray-blue);
}

.page-faq .crumbs__current {
  color: var(--deep-blue);
  font-weight: 600;
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  align-items: center;
  padding-block: clamp(20px, 4vw, 38px) clamp(26px, 4vw, 48px);
}

.page-faq .faq-hero .display {
  margin: 10px 0 0;
  font-size: clamp(30px, 4.6vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--deep-blue);
}

.page-faq .faq-hero .lede {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--deep-blue);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__media {
  display: block;
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 9px solid var(--deep-blue);
  border-bottom-width: 22px;
  background: var(--ink-blue);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-hero__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-faq .media {
  position: relative;
  display: block;
}

.page-faq .media__scan {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(7, 24, 43, 0.08) 0 1px,
    rgba(7, 24, 43, 0) 1px 3px
  );
}

/* 分组索引 */
.page-faq .faq-index {
  padding-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-faq .faq-index__item a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--tv-amber);
  border-radius: var(--radius-sm);
  background: var(--faq-panel);
  color: var(--deep-blue);
  font-size: 14px;
  text-decoration: none;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease), border-left-color 0.25s var(--ease);
}

.page-faq .faq-index__item a:hover,
.page-faq .faq-index__item a:focus-visible {
  background: var(--amber-light);
  border-left-color: var(--retro-red);
  transform: translateX(3px);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--brick-red);
}

/* 分组主体 */
.page-faq .faq-groups {
  padding-block: clamp(28px, 5vw, 60px) clamp(30px, 5vw, 64px);
  background: linear-gradient(180deg, rgba(232, 180, 74, 0.16) 0, rgba(232, 180, 74, 0) 340px);
}

.page-faq .faq-groups__title {
  margin: 0;
  font-size: clamp(26px, 3.2vw, 40px);
  color: var(--deep-blue);
}

.page-faq .faq-groups__note {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray-blue);
}

.page-faq .faq-groups__band {
  position: relative;
  height: clamp(92px, 16vw, 170px);
  margin-top: clamp(18px, 3vw, 30px);
  overflow: hidden;
}

.page-faq .faq-groups__texture {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(0.65);
}

.page-faq .faq-groups__band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    var(--haiou-white) 0,
    rgba(247, 244, 236, 0) 26%,
    rgba(247, 244, 236, 0) 74%,
    var(--haiou-white) 100%
  );
}

.page-faq .faq-groups__body {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  padding-top: clamp(24px, 4vw, 44px);
}

.page-faq .faq-group {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px 0;
  padding: clamp(18px, 3vw, 28px) clamp(16px, 2.6vw, 26px);
  background: var(--faq-panel);
  border-top: 3px solid var(--deep-blue);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-group:nth-child(odd) {
  border-top-color: var(--tv-amber);
}

.page-faq .faq-group:nth-child(even) {
  border-top-color: var(--electric-teal);
}

.page-faq .faq-group__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--brick-red);
}

.page-faq .faq-group:nth-child(even) .faq-group__num {
  color: var(--deep-blue);
}

.page-faq .faq-group__title {
  margin: 6px 0 0;
  font-size: clamp(20px, 2.2vw, 25px);
  line-height: 1.3;
  color: var(--deep-blue);
}

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

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

.page-faq .faq-item__q {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 16px 52px 16px 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--deep-blue);
}

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

.page-faq .faq-item__q::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(14, 43, 76, 0.28);
  transform: translateY(-50%);
  background:
    linear-gradient(var(--deep-blue), var(--deep-blue)) 50% 3px / 2px 9px no-repeat,
    radial-gradient(circle at 50% 50%, var(--tv-amber) 0 38%, var(--haiou-white) 38% 100%);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  border-color: var(--retro-red);
  transform: translateY(-50%) rotate(150deg);
}

.page-faq .faq-item__a {
  padding: 0 0 18px 18px;
  margin-left: 2px;
  border-left: 2px solid var(--amber-light);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--deep-blue);
  animation: faq-fade-in 0.32s var(--ease) both;
}

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

.page-faq .faq-item__a p + p,
.page-faq .faq-item__a p + .faq-steps {
  margin-top: 12px;
}

@keyframes faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-faq .faq-steps li::before {
  content: attr(data-step);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--retro-red);
}

.page-faq .faq-group__aside {
  border-top: 1px dashed var(--gray-blue);
  padding-top: 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gray-blue);
}

.page-faq .faq-group__aside p {
  margin: 0 0 6px;
}

.page-faq .faq-group__aside a {
  color: var(--deep-blue);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--electric-teal);
}

.page-faq .faq-group__aside a:hover {
  border-bottom-color: var(--retro-red);
}

/* 客服区 */
.page-faq .faq-support {
  padding-block: clamp(28px, 5vw, 60px) clamp(36px, 6vw, 72px);
}

.page-faq .faq-support__panel {
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 44px);
  color: var(--haiou-white);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: clamp(22px, 3.5vw, 40px);
}

.page-faq .faq-support__title {
  margin: 0;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
  color: var(--haiou-white);
}

.page-faq .faq-support__lede {
  margin: 14px 0 22px;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(247, 244, 236, 0.86);
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  border-left: 1px solid rgba(47, 197, 182, 0.4);
  padding-left: 18px;
}

.page-faq .faq-support__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tv-amber);
  margin-bottom: 4px;
}

.page-faq .faq-support__value {
  display: block;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--haiou-white);
  overflow-wrap: anywhere;
}

/* 桌面布局 */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr);
  }

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

  .page-faq .faq-group {
    grid-template-columns: 96px minmax(0, 1fr) 218px;
    gap: 0 30px;
    align-items: start;
  }

  .page-faq .faq-group__index {
    padding-right: 10px;
  }

  .page-faq .faq-group__aside {
    border-top: 0;
    border-left: 1px dashed var(--gray-blue);
    padding-top: 4px;
    padding-left: 18px;
    margin-top: 6px;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-group:nth-child(even) {
    margin-left: clamp(18px, 3vw, 44px);
  }

  .page-faq .faq-group:nth-child(odd) {
    margin-right: clamp(18px, 3vw, 44px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item a,
  .page-faq .faq-item__q::after {
    transition: none;
  }

  .page-faq .faq-index__item a:hover,
  .page-faq .faq-index__item a:focus-visible {
    transform: none;
  }

  .page-faq .faq-item__a {
    animation: none;
  }
}