/* ===== 页面基础 ===== */
.page-faq {
  background: var(--bg-deep);
  color: var(--text-light);
  scroll-behavior: smooth;
}
.page-faq .container {
  padding-left: 16px;
  padding-right: 16px;
}
.page-faq .faq-container {
  padding-top: 32px;
}

/* ===== 面包屑 ===== */
.page-faq .breadcrumbs {
  margin-bottom: 24px;
}
.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--text-dim);
}
.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  opacity: 0.45;
}
.page-faq .breadcrumbs__link {
  color: var(--neon-green);
  text-decoration: none;
  transition: color var(--transition);
}
.page-faq .breadcrumbs__link:hover {
  color: var(--electric-orange);
}

/* ===== 页头 ===== */
.page-faq .faq-page-header {
  padding: 24px 0 44px;
  border-left: 4px solid var(--neon-green);
  padding-left: 20px;
  margin-bottom: 16px;
}
.page-faq .faq-page-header__label {
  display: inline-block;
  color: var(--electric-orange);
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 13px;
}
.page-faq .faq-page-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  transform: skewX(-5deg);
  margin: 12px 0 0;
  max-width: 780px;
}
.page-faq .faq-page-intro {
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.8;
  max-width: 720px;
  margin: 16px 0 0;
}

/* ===== 左右分屏布局 ===== */
.page-faq .faq-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding-bottom: 72px;
}
.page-faq .faq-layout::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 88% 8%, rgba(30, 77, 74, 0.3), transparent 42%),
    repeating-linear-gradient(135deg, rgba(30, 77, 74, 0.12) 0 1px, transparent 1px 14px);
  pointer-events: none;
}
.page-faq .faq-layout > * {
  position: relative;
  z-index: 1;
}

/* ===== 左侧目录 ===== */
.page-faq .faq-directory {
  margin-bottom: 8px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  overflow-x: visible;
}
.page-faq .faq-directory__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}
.page-faq .faq-directory__label {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--electric-orange);
}
.page-faq .faq-directory__count {
  color: var(--neon-green);
  font-size: 15px;
  font-weight: 700;
}
.page-faq .faq-directory__list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 0 10px;
  margin: 0;
  list-style: none;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-directory__link {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.5;
  text-decoration: none;
  background: var(--bg-deep-2);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.page-faq .faq-directory__link .mono-num {
  color: var(--neon-green);
  font-size: 12px;
  font-weight: 700;
}
.page-faq .faq-directory__link:hover,
.page-faq .faq-directory__link:focus-visible {
  border-color: var(--line);
  color: var(--text-light);
  background: rgba(30, 77, 74, 0.32);
}

/* ===== 右侧内容 ===== */
.page-faq .faq-content {
  position: relative;
  min-width: 0;
}
.page-faq .faq-section {
  margin-bottom: 44px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-section:last-of-type {
  border-bottom: 0;
  margin-bottom: 32px;
}
.page-faq .faq-section__head {
  margin-bottom: 24px;
}
.page-faq .faq-section__num {
  display: inline-block;
  font-size: 16px;
  font-weight: 700;
  color: var(--neon-green);
  background: var(--dark-teal);
  border: 1px solid var(--line);
  padding: 10px 14px;
  transform: skewX(-8deg);
  line-height: 1;
}
.page-faq .faq-section__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.25;
  margin: 16px 0 0;
  color: var(--text-light);
}
.page-faq .faq-section__intro {
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.75;
  margin: 10px 0 0;
  max-width: 640px;
}

/* ===== 手风琴列表 ===== */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
  min-width: 0;
}
.page-faq .faq-list .accordion__item {
  scroll-margin-top: 90px;
  background: linear-gradient(120deg, rgba(15, 58, 64, 0.5), rgba(11, 27, 45, 0.82));
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--electric-orange);
  transition: border-color var(--transition), background var(--transition);
}
.page-faq .faq-list .accordion__item:hover {
  border-left-color: var(--neon-green);
  background: linear-gradient(120deg, rgba(30, 77, 74, 0.32), rgba(11, 27, 45, 0.92));
}
.page-faq .faq-list .accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 20px;
  background: transparent;
  border: 0;
  color: var(--text-light);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition);
}
.page-faq .faq-list .accordion__trigger:focus-visible {
  outline: 2px solid var(--neon-green);
  outline-offset: -2px;
}
.page-faq .faq-list .accordion__trigger[aria-expanded="true"] {
  color: var(--neon-green);
}
.page-faq .faq-list .accordion__trigger:hover {
  color: var(--electric-orange);
}
.page-faq .faq-list .accordion__trigger:target {
  color: var(--neon-green);
}
.page-faq .faq-item__icon {
  flex-shrink: 0;
  position: relative;
  width: 20px;
  height: 20px;
}
.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform var(--transition), opacity var(--transition);
}
.page-faq .faq-item__icon::before {
  width: 10px;
  height: 2px;
}
.page-faq .faq-item__icon::after {
  width: 2px;
  height: 10px;
}
.page-faq .accordion__trigger[aria-expanded="true"] .faq-item__icon::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}
.page-faq .faq-list .accordion__panel {
  padding: 4px 20px 22px;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px dashed var(--line-soft);
}
.page-faq .faq-list .accordion__panel p {
  margin: 12px 0 0;
}

/* ===== 快速入门网格与图 ===== */
.page-faq .faq-quick-grid,
.page-faq .faq-data-grid {
  display: grid;
  gap: 24px;
  min-width: 0;
}
.page-faq .faq-figure {
  position: relative;
  margin: 0;
  padding: 10px;
  background: var(--bg-deep-2);
  border: 1px solid var(--line-soft);
  clip-path: var(--clip);
}
.page-faq .faq-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure__caption {
  color: var(--text-dim);
  font-size: 12px;
  line-height: 1.6;
  padding: 10px 4px 2px;
  letter-spacing: 0.04em;
}
.page-faq .faq-figure__caption::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  background: var(--electric-orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0 100%);
  vertical-align: middle;
}

/* ===== 更多帮助 ===== */
.page-faq .faq-more-help {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 12px;
  padding: 32px;
  background: var(--teal);
  border: 1px solid var(--line-soft);
  clip-path: var(--clip);
}
.page-faq .faq-more-help__copy h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 24px;
  line-height: 1.3;
  margin: 0;
  color: var(--text-light);
}
.page-faq .faq-more-help__copy p {
  color: rgba(245, 247, 250, 0.86);
  font-size: 15px;
  line-height: 1.7;
  margin: 10px 0 0;
}
.page-faq .faq-more-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 900px) {
  .page-faq .container {
    padding-left: 24px;
    padding-right: 24px;
  }
  .page-faq .faq-layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 56px;
  }
  .page-faq .faq-directory {
    position: sticky;
    top: 110px;
    align-self: start;
    max-height: calc(100vh - 150px);
    overflow-y: auto;
    margin: 0;
    padding-top: 0;
    border-top: 0;
  }
  .page-faq .faq-directory__list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding: 0 0 0 2px;
    border-left: 2px solid var(--line-soft);
  }
  .page-faq .faq-directory__link {
    display: flex;
    flex: 0 0 auto;
    gap: 10px;
    padding: 10px 0 10px 20px;
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0;
    margin-left: -2px;
    background: transparent;
    font-size: 14px;
    line-height: 1.55;
    white-space: normal;
  }
  .page-faq .faq-directory__link:hover,
  .page-faq .faq-directory__link:focus-visible {
    border-left-color: var(--neon-green);
    color: var(--neon-green);
    background: transparent;
  }
  .page-faq .faq-section__head {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
  }
  .page-faq .faq-section__num {
    margin-top: 6px;
    flex-shrink: 0;
  }
  .page-faq .faq-section__title {
    margin-top: 0;
  }
  .page-faq .faq-section__intro {
    margin-top: 8px;
  }
  .page-faq .faq-more-help {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-faq .faq-more-help__actions {
    flex-shrink: 0;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-quick-grid,
  .page-faq .faq-data-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: 32px;
    align-items: start;
  }
  .page-faq .faq-figure {
    margin-top: 4px;
  }
}