.page-faq {
  --faq-index-width: 210px;
  padding-bottom: 64px;
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-height) + 16px);
}

/* ========== Hero ========== */
.page-faq .faq-hero {
  position: relative;
  padding: 24px 0 64px;
  background: linear-gradient(128deg, var(--bg-orange) 0%, var(--bg-purple) 62%, var(--bg-deep) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.14) 1px, transparent 1.2px),
    radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1.5px);
  background-size: 12px 12px, 24px 24px;
  background-position: 0 0, 6px 6px;
  pointer-events: none;
  mix-blend-mode: overlay;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 4%;
  top: -40px;
  width: 140px;
  height: 140px;
  border: 3px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  box-shadow:
    0 0 0 16px rgba(255, 255, 255, 0.05),
    0 0 0 32px rgba(255, 255, 255, 0.03);
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb__item,
.page-faq .faq-hero .breadcrumb__item a {
  color: rgba(255, 255, 255, 0.88);
  border-color: rgba(255, 255, 255, 0.2);
}

.page-faq .faq-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.16;
  color: #fff;
  margin: 0 0 12px;
  text-shadow:
    3px 3px 0 rgba(26, 10, 46, 0.45),
    -1px -1px 0 rgba(255, 255, 255, 0.12);
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.18);
}

.page-faq .faq-hero__sep {
  margin: 0 0.18em;
  color: var(--card-yellow);
  text-shadow: none;
}

.page-faq .faq-hero__lead {
  font-size: var(--fs-lead);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.92);
  max-width: 680px;
  margin: 0 0 18px;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-hero__chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: rgba(26, 10, 46, 0.38);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.03em;
}

/* ========== 检索技巧 ========== */
.page-faq .faq-tips-band {
  position: relative;
  z-index: 5;
  margin-top: -32px;
  padding-bottom: 8px;
}

.page-faq .tips-band__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-faq .tips-band__title {
  font-family: var(--font-heading);
  font-size: var(--fs-section);
  color: var(--text-primary);
  margin: 0;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.25);
}

.page-faq .tips-band__lead {
  font-size: var(--fs-small);
  color: var(--text-secondary);
}

.page-faq .search-tips-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .tip-card {
  --tip-dot: rgba(0, 0, 0, 0.1);
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "num title arrow"
    "num desc arrow";
  gap: 2px 12px;
  align-items: center;
  padding: 14px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: var(--bg-deep-darker);
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .tip-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--tip-dot) 1px, transparent 1.4px);
  background-size: 10px 10px;
  border-radius: inherit;
  pointer-events: none;
}

.page-faq .tip-card:hover {
  transform: translateY(-4px) rotate(0.5deg);
  box-shadow: 10px 12px 0 rgba(0, 0, 0, 0.45);
}

.page-faq .tip-card__num {
  grid-area: num;
  align-self: start;
  font-family: var(--font-heading);
  font-size: 20px;
  line-height: 1;
  padding: 5px 6px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 4px;
}

.page-faq .tip-card__title {
  grid-area: title;
  font-family: var(--font-heading);
  font-size: 18px;
  letter-spacing: 0.02em;
}

.page-faq .tip-card__desc {
  grid-area: desc;
  font-size: 12px;
  line-height: 1.45;
  opacity: 0.78;
}

.page-faq .tip-card__arrow {
  grid-area: arrow;
  font-size: 24px;
  font-weight: 900;
  line-height: 1;
  align-self: center;
}

.page-faq .tip-card--yellow { background: var(--card-yellow); }
.page-faq .tip-card--magenta { background: var(--card-magenta); color: #fff; --tip-dot: rgba(255, 255, 255, 0.2); }
.page-faq .tip-card--green { background: var(--card-green); }
.page-faq .tip-card--blue { background: var(--accent-blue); }
.page-faq .tip-card--orange { background: var(--bg-orange); }
.page-faq .tip-card--purple { background: var(--bg-purple); color: #fff; --tip-dot: rgba(255, 255, 255, 0.2); }

/* ========== 主布局 ========== */
.page-faq .faq-layout {
  display: block;
  padding-top: 32px;
}

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

.page-faq .faq-block {
  margin-bottom: 48px;
}

.page-faq .section-head {
  margin-bottom: 20px;
}

.page-faq .faq-block__tag {
  font-family: var(--font-heading);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--card-yellow);
  padding: 5px 12px;
  border: 2px solid var(--card-yellow);
  border-radius: 999px;
  white-space: nowrap;
}

.page-faq .faq-block__tag--blue {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
}

/* ========== 侧边索引 ========== */
.page-faq .faq-index {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 0 14px;
  margin-bottom: 28px;
  border-bottom: 2px solid var(--border-line);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__label {
  flex: 0 0 auto;
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  padding: 5px 10px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 4px;
}

.page-faq .faq-index__nav {
  display: flex;
  gap: 4px;
}

.page-faq .faq-index__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 14px;
  text-decoration: none;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-line);
  border-radius: 999px;
  white-space: nowrap;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-index__link:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.page-faq .faq-index__no {
  font-family: var(--font-heading);
  font-size: 12px;
  color: var(--accent-blue);
}

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

/* ========== 快速开始 ========== */
.page-faq .quick-steps {
  display: grid;
  grid-template-columns: 1fr;
  padding: 6px 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 2px solid var(--border-line);
  border-radius: var(--radius);
}

.page-faq .quick-step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 2px dashed var(--border-line);
}

.page-faq .quick-step:last-child {
  border-bottom: none;
}

.page-faq .quick-step__num {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: var(--font-heading);
  font-size: 20px;
  color: #fff;
  background: var(--accent-blue);
  border: 3px solid #fff;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
}

.page-faq .quick-step:nth-child(1) .quick-step__num { background: var(--accent-blue); }
.page-faq .quick-step:nth-child(2) .quick-step__num { background: var(--card-magenta); }
.page-faq .quick-step:nth-child(3) .quick-step__num { background: var(--card-yellow); color: var(--bg-deep-darker); }
.page-faq .quick-step:nth-child(4) .quick-step__num { background: var(--card-green); color: var(--bg-deep-darker); }

.page-faq .quick-step__title {
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--text-primary);
  margin: 0 0 6px;
}

.page-faq .quick-step__desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}

.page-faq .quick-steps__figure {
  margin: 18px 0 0 auto;
  max-width: 420px;
  padding: 6px;
  background: rgba(0, 176, 255, 0.08);
  border: 2px dashed var(--accent-blue);
  border-radius: var(--radius);
}

.page-faq .quick-steps__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

/* ========== 常见问题 ========== */
.page-faq .faq-block--questions {
  position: relative;
}

.page-faq .faq-questions__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.page-faq .faq-decor {
  margin: 0;
  flex: 0 0 auto;
  width: 72px;
  transform: rotate(5deg);
  opacity: 0.85;
}

.page-faq .faq-decor img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: var(--shadow-card);
}

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-item {
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid var(--border-line);
  border-radius: var(--radius);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-faq .faq-item[open] {
  border-color: var(--accent-blue);
  background: rgba(0, 176, 255, 0.06);
}

.page-faq .faq-item--search { border-left: 5px solid var(--accent-blue); }
.page-faq .faq-item--progress { border-left: 5px solid var(--card-green); }
.page-faq .faq-item--quality { border-left: 5px solid var(--card-yellow); }
.page-faq .faq-item--update { border-left: 5px solid var(--card-magenta); }
.page-faq .faq-item--device { border-left: 5px solid var(--bg-orange); }
.page-faq .faq-item--feedback { border-left: 5px solid var(--bg-purple); }

.page-faq .faq-item__toggle {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--text-primary);
}

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

.page-faq .faq-item__toggle:hover .faq-item__text {
  color: var(--accent-blue);
}

.page-faq .faq-item__mark {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 14px;
  background: var(--card-magenta);
  color: #fff;
  border-radius: 4px;
  transform: skewX(-8deg);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.3);
}

.page-faq .faq-item--search .faq-item__mark { background: var(--accent-blue); }
.page-faq .faq-item--progress .faq-item__mark { background: var(--card-green); color: var(--bg-deep-darker); }
.page-faq .faq-item--quality .faq-item__mark { background: var(--card-yellow); color: var(--bg-deep-darker); }
.page-faq .faq-item--update .faq-item__mark { background: var(--card-magenta); }
.page-faq .faq-item--device .faq-item__mark { background: var(--bg-orange); color: var(--bg-deep-darker); }
.page-faq .faq-item--feedback .faq-item__mark { background: var(--bg-purple); }

.page-faq .faq-item__text {
  flex: 1;
  font-weight: 600;
  transition: color 0.2s ease;
}

.page-faq .faq-item__icon {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  border: 2px solid var(--border-line);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: transform 0.25s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-item__icon::before {
  content: "+";
  line-height: 1;
}

.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(135deg);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.page-faq .faq-item__panel {
  padding: 0 16px 16px 54px;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-faq .faq-item[open] .faq-item__panel {
  animation: faq-panel-in 0.25s ease-out;
}

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

/* ========== 反馈与联系 ========== */
.page-faq .faq-contact {
  background: linear-gradient(135deg, rgba(255, 140, 66, 0.16), rgba(107, 45, 139, 0.3));
  border: 2px solid var(--border-line);
  border-radius: var(--radius);
  padding: 28px 20px;
}

.page-faq .faq-contact .section-head {
  margin-bottom: 18px;
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.page-faq .faq-contact__card {
  padding: 16px;
  background: rgba(26, 10, 46, 0.55);
  border: 2px solid var(--border-line);
  border-radius: var(--radius);
  text-align: center;
}

.page-faq .faq-contact__card--email { border-top: 5px solid var(--accent-blue); }
.page-faq .faq-contact__card--phone { border-top: 5px solid var(--card-green); }
.page-faq .faq-contact__card--time { border-top: 5px solid var(--card-yellow); }

.page-faq .faq-contact__label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.page-faq .faq-contact__value {
  display: block;
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--text-primary);
  word-break: break-word;
}

.page-faq .faq-contact__actions {
  display: flex;
  justify-content: center;
}

/* ========== 响应式 ========== */
@media (min-width: 600px) {
  .page-faq .faq-hero {
    padding: 32px 0 84px;
  }

  .page-faq .faq-hero::after {
    width: 220px;
    height: 220px;
    right: 10%;
    top: -20px;
    box-shadow:
      0 0 0 24px rgba(255, 255, 255, 0.05),
      0 0 0 48px rgba(255, 255, 255, 0.03);
  }

  .page-faq .faq-tips-band {
    margin-top: -44px;
  }

  .page-faq .search-tips-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-decor {
    width: 100px;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: var(--faq-index-width) 1fr;
    gap: 36px;
    align-items: start;
    padding-top: 40px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-height) + 20px);
    z-index: 10;
    display: block;
    padding: 18px 14px;
    margin-bottom: 0;
    background: linear-gradient(180deg, rgba(107, 45, 139, 0.45), rgba(26, 10, 46, 0.85));
    border: 2px solid var(--border-line);
    border-radius: 8px;
    overflow: visible;
  }

  .page-faq .faq-index__label {
    display: block;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-line);
    background: none;
    border-radius: 0;
  }

  .page-faq .faq-index__nav {
    flex-direction: column;
    gap: 4px;
  }

  .page-faq .faq-index__link {
    display: flex;
    padding: 8px 10px;
    border: none;
    border-radius: 4px;
    white-space: normal;
    background: transparent;
  }

  .page-faq .faq-index__link:hover {
    background: rgba(0, 176, 255, 0.15);
  }

  .page-faq .faq-index__note {
    display: block;
    margin-top: 16px;
    padding: 12px 10px;
    background: rgba(255, 140, 66, 0.12);
    border-left: 3px solid var(--bg-orange);
    border-radius: 0 4px 4px 0;
  }

  .page-faq .faq-index__note-title {
    display: block;
    font-family: var(--font-heading);
    font-size: 13px;
    color: var(--bg-orange);
  }

  .page-faq .faq-index__note p {
    margin: 6px 0 0;
    font-size: 12px;
    line-height: 1.6;
    color: var(--text-secondary);
  }

  .page-faq .search-tips-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}