.page-faq {
  --faq-card-radius: 20px;
  --faq-gold-soft: rgba(245,183,0,0.14);
  --faq-orange-line: rgba(255,107,53,0.4);
  background: var(--c-bg);
  color: var(--c-light);
}

/* ===== Hero ===== */
.faq-hero {
  position: relative;
  padding: 44px 0 0;
  background:
    radial-gradient(circle at 82% 18%, rgba(245,183,0,0.08) 0, transparent 300px),
    linear-gradient(135deg, var(--c-bg-deep) 0%, var(--c-bg) 55%, #10294d 100%);
  overflow: hidden;
}
.faq-hero::before {
  content: "";
  position: absolute;
  right: -120px;
  top: 80px;
  width: 260px;
  height: 260px;
  border: 44px solid rgba(255,107,53,0.05);
  border-radius: 50%;
  pointer-events: none;
}
.faq-hero__content {
  position: relative;
  z-index: 1;
  max-width: 880px;
}
.faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--c-gold);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.faq-hero__eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--c-orange);
  border-radius: var(--radius-pill);
}
.faq-hero__title {
  font-family: var(--font-head);
  font-size: 34px;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--c-white);
  margin: 0 0 14px;
}
.faq-hero__desc {
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-light);
  margin: 0;
  max-width: 640px;
}

.faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 28px 0 32px;
  padding: 0;
  position: relative;
  z-index: 1;
}
.faq-hero__stat {
  margin: 0;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}
.faq-hero__stat:last-child {
  grid-column: 1 / -1;
}
.faq-hero__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--c-gold);
  margin: 0;
}
.faq-hero__label {
  font-size: 12px;
  color: var(--c-muted);
  margin: 4px 0 0;
}

.faq-hero__media-wrap {
  position: relative;
  z-index: 1;
}
.faq-hero__media-wrap img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  border: 1px solid var(--c-border);
  border-bottom: 0;
  object-fit: cover;
}

/* ===== 搜索入口 ===== */
.faq-search-wrap {
  position: relative;
  z-index: 2;
}
.faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-pill);
  padding: 8px 12px 8px 20px;
  margin: -28px 0 0;
  box-shadow: 0 16px 40px rgba(6,18,36,0.35);
  transition: border-color 0.2s ease;
}
.faq-search:focus-within {
  border-color: var(--c-gold);
}
.faq-search__icon {
  flex: none;
  color: var(--c-gold);
}
.faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--c-light);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 8px 0;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
.faq-search__input::placeholder {
  color: var(--c-muted);
  opacity: 1;
}
.faq-search__btn {
  flex: none;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  padding-top: 28px;
  padding-bottom: 4px;
  color: var(--c-muted);
  font-size: 13px;
}

/* ===== 问题分类 ===== */
.faq-main {
  padding-top: 28px;
  padding-bottom: var(--space-section);
}
.faq-main__header {
  margin-bottom: 32px;
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.faq-catalog {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.faq-catalog__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-pill);
  color: var(--c-light);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1;
  padding: 11px 18px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.faq-catalog__item:hover {
  border-color: var(--c-gold);
  color: var(--c-white);
}
.faq-catalog__item[aria-selected="true"] {
  background: var(--c-gold);
  border-color: var(--c-gold);
  color: var(--c-bg-deep);
  font-weight: 600;
}
.faq-catalog__num {
  font-family: var(--font-mono);
  font-size: 12px;
  opacity: 0.7;
}

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

/* ===== 折叠面板 ===== */
.faq-item {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--faq-card-radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.faq-item[open] {
  border-color: rgba(245,183,0,0.5);
}
.faq-item__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-white);
  cursor: pointer;
}
.faq-item__q::-webkit-details-marker {
  display: none;
}
.faq-item__q:hover {
  color: var(--c-gold);
}
.faq-item__icon {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
}
.faq-item__icon::before,
.faq-item__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--c-gold);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.faq-item__icon::before {
  width: 14px;
  height: 2px;
}
.faq-item__icon::after {
  width: 2px;
  height: 14px;
}
.faq-item[open] .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}
.faq-item__a {
  padding: 0 22px 20px;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.7;
}
.faq-item__a p {
  margin: 0;
}
.faq-item[open] .faq-item__a {
  animation: faq-answer-in 0.28s ease;
}
@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 新手指南 ===== */
.faq-guide {
  background: var(--c-bg-deep);
  padding: var(--space-section) 0;
}
.faq-guide__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}
.faq-guide__header {
  margin-bottom: 8px;
}
.faq-guide__steps {
  list-style: none;
  margin: 24px 0 28px;
  padding: 0;
}
.faq-guide__step {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-border);
}
.faq-guide__step:first-child {
  padding-top: 0;
}
.faq-guide__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-orange);
  border: 1px solid var(--faq-orange-line);
  border-radius: var(--radius-pill);
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  margin-top: 2px;
}
.faq-guide__step-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-white);
  margin: 0 0 6px;
}
.faq-guide__step-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-muted);
  margin: 0;
}
.faq-guide__cta {
  display: inline-flex;
}
.faq-guide__media {
  display: flex;
  justify-content: center;
}
.faq-guide__media img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
}

/* ===== 联系客服 ===== */
.faq-contact {
  padding: var(--space-section) 0;
}
.faq-contact__header {
  margin-bottom: 32px;
}
.faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.faq-contact__card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 24px;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--c-light);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.faq-contact__card--gold {
  background: linear-gradient(135deg, var(--faq-gold-soft) 0%, var(--c-card) 62%);
  border-color: rgba(245,183,0,0.45);
}
.faq-contact__card:hover {
  border-color: var(--c-gold);
  transform: translateY(-2px);
}
.faq-contact__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 6px;
}
.faq-contact__value {
  font-size: 18px;
  font-weight: 600;
  color: var(--c-white);
}
.faq-contact__hint {
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-muted);
  margin-top: 4px;
}
.faq-contact__footnote {
  margin-top: 28px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}
.faq-contact__footnote a {
  color: var(--c-gold);
  text-decoration: none;
}
.faq-contact__footnote a:hover {
  color: var(--c-gold-hover);
  text-decoration: underline;
}

/* ===== 桌面增强 ===== */
@media (min-width: 900px) {
  .faq-hero {
    padding: 64px 0 0;
  }
  .faq-hero__title {
    font-size: 44px;
  }
  .faq-hero__stats {
    grid-template-columns: repeat(3, auto);
    justify-content: start;
    gap: 20px;
    margin-bottom: 40px;
  }
  .faq-hero__stat:last-child {
    grid-column: auto;
  }
  .faq-hero__stat {
    padding: 16px 28px;
  }
  .faq-hero__num {
    font-size: 24px;
  }
  .faq-search {
    max-width: 720px;
    margin-top: -32px;
  }
  .breadcrumb {
    padding-top: 36px;
  }
  .faq-main {
    padding-top: 40px;
  }
  .faq-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
  .faq-catalog {
    flex-direction: column;
    gap: 2px;
    position: sticky;
    top: 24px;
    padding: 8px;
    background: var(--c-bg-deep);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
  }
  .faq-catalog__item {
    border: 0;
    border-radius: calc(var(--radius-lg) - 8px);
    justify-content: flex-start;
    padding: 14px 18px;
    font-size: 15px;
  }
  .faq-catalog__item:hover {
    background: rgba(245,183,0,0.08);
    border-color: transparent;
  }
  .faq-catalog__item[aria-selected="true"] {
    background: var(--faq-gold-soft);
    color: var(--c-gold);
  }
  .faq-guide__grid {
    grid-template-columns: minmax(0, 1fr) 400px;
    gap: 56px;
  }
  .faq-contact__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}