.page-faq {
  --faq-line: rgba(27, 76, 124, 0.45);
  --faq-soft-accent: rgba(255, 107, 53, 0.12);
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
}

.page-faq a:focus-visible,
.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--color-lime);
  outline-offset: 2px;
  border-radius: 2px;
}

/* --- 顶部横幅 --- */
.page-faq .help-hero {
  position: relative;
  padding: 36px 16px 44px;
  background:
    radial-gradient(circle at 80% 10%, rgba(255, 107, 53, 0.12), transparent 38%),
    linear-gradient(155deg, var(--color-bg-deep) 0%, var(--color-bg) 55%, #0B223E 100%);
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .help-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: 180px;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--color-accent) 70%, var(--color-lime));
  border-radius: 4px 0 0 4px;
}
.page-faq .help-hero__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  gap: 28px;
  align-items: center;
}
.page-faq .help-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 14px;
}
.page-faq .help-hero__crumb {
  color: var(--color-text-weak);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.page-faq .help-hero__crumb:hover {
  color: var(--color-accent);
}
.page-faq .help-hero__crumb-sep {
  color: var(--color-blue);
}
.page-faq .help-hero__crumb-current {
  color: var(--color-text);
}
.page-faq .help-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--color-lime);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.page-faq .help-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 34px;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.page-faq .help-hero__title-accent {
  display: block;
  color: var(--color-accent);
}
.page-faq .help-hero__lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-weak);
  max-width: 560px;
  margin-bottom: 24px;
}
.page-faq .help-hero__metas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
}
.page-faq .help-hero__meta {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.page-faq .help-hero__meta-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 22px;
  color: var(--color-accent);
}
.page-faq .help-hero__meta-label {
  font-size: 13px;
  color: var(--color-text-weak);
}
.page-faq .help-hero__visual {
  position: relative;
}
.page-faq .help-hero__img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(27, 76, 124, 0.4);
  box-shadow: var(--shadow-2);
}

/* --- 快速导航 --- */
.page-faq .faq-guide {
  padding: 44px 16px 48px;
}
.page-faq .faq-guide::before {
  content: "";
  display: block;
  height: 4px;
  max-width: var(--container-max);
  margin: 0 auto 32px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-lime) 80%, transparent);
  transform: skewY(-1.2deg);
  transform-origin: left center;
  border-radius: 2px;
}
.page-faq .faq-guide__inner {
  max-width: var(--container-max);
  margin: 0 auto;
}
.page-faq .faq-guide__head {
  margin-bottom: 24px;
}
.page-faq .faq-guide__index,
.page-faq .faq-panel__index,
.page-faq .faq-contact__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-lime);
}
.page-faq .faq-guide__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 28px;
  margin: 6px 0 8px;
  letter-spacing: -0.01em;
}
.page-faq .faq-guide__desc,
.page-faq .faq-panel__desc {
  font-size: 14px;
  color: var(--color-text-weak);
}
.page-faq .faq-guide__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.page-faq .faq-guide__card {
  position: relative;
  display: block;
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-card);
  border: var(--border-w) solid var(--color-blue);
  border-radius: var(--radius-md);
  padding: 18px 16px;
  overflow: hidden;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}
.page-faq .faq-guide__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-accent), rgba(255, 107, 53, 0.08));
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}
.page-faq .faq-guide__card:hover,
.page-faq .faq-guide__card:focus-visible {
  border-color: var(--color-accent);
  background: linear-gradient(135deg, var(--color-card), var(--faq-soft-accent));
  transform: translateY(-2px);
}
.page-faq .faq-guide__card:hover::before,
.page-faq .faq-guide__card:focus-visible::before {
  opacity: 1;
}
.page-faq .faq-guide__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.page-faq .faq-guide__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  margin-bottom: 4px;
}
.page-faq .faq-guide__meta {
  display: block;
  font-size: 13px;
  color: var(--color-text-weak);
}

/* --- 所有问答 --- */
.page-faq .faq-panel {
  padding: 44px 16px 52px;
  background: var(--color-bg-deep);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .faq-panel__inner {
  max-width: var(--container-max);
  margin: 0 auto;
}
.page-faq .faq-panel__head {
  margin-bottom: 32px;
}
.page-faq .faq-panel__head::before {
  content: "";
  display: block;
  width: 56px;
  height: 8px;
  background: linear-gradient(90deg, var(--color-accent) 0 60%, var(--color-lime) 60% 100%);
  transform: skewX(-18deg);
  margin-bottom: 16px;
  border-radius: 2px;
}
.page-faq .faq-panel__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 30px;
  margin: 6px 0 8px;
  letter-spacing: -0.01em;
}

/* --- 分类组 --- */
.page-faq .faq-group {
  scroll-margin-top: 80px;
  margin-bottom: 36px;
}
.page-faq .faq-group:last-child {
  margin-bottom: 0;
}
.page-faq .faq-group__header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding: 0 0 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--color-accent);
  background: var(--faq-soft-accent);
  border: 1px solid rgba(255, 107, 53, 0.35);
  border-radius: var(--radius-sm);
  padding: 3px 9px;
}
.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
}
.page-faq .faq-group__en {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--color-text-weak);
  text-transform: uppercase;
  margin-left: auto;
}
.page-faq .faq-group__list {
  display: grid;
  gap: 10px;
}
.page-faq .faq-group__body--split {
  display: grid;
  gap: 20px;
  align-items: start;
}
.page-faq .faq-group__figure {
  margin: 0;
}
.page-faq .faq-group__img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-blue);
  box-shadow: var(--shadow-1);
}

/* --- 手风琴项 --- */
.page-faq .faq-item {
  background: var(--color-card);
  border: 1px solid var(--color-blue);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.page-faq .faq-item[open] {
  border-color: rgba(255, 107, 53, 0.55);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.22);
}
.page-faq .faq-item__summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 14px;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__summary::marker {
  content: "";
  display: none;
}
.page-faq .faq-item__num {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--color-accent);
  background: rgba(255, 107, 53, 0.12);
  border-radius: 4px;
  padding: 2px 7px;
}
.page-faq .faq-item__question {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  flex: 1;
}
.page-faq .faq-item__icon {
  flex: none;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-blue);
  border-radius: 50%;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.page-faq .faq-item__icon::before {
  content: "+";
}
.page-faq .faq-item[open] .faq-item__icon::before {
  content: "−";
}
.page-faq .faq-item[open] .faq-item__icon {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}
.page-faq .faq-item__answer {
  margin: 0 14px 14px;
  padding: 2px 0 2px 12px;
  border-left: 2px solid var(--color-accent);
  color: var(--color-text-weak);
  font-size: 14px;
  line-height: 1.75;
}
.page-faq .faq-item__answer p {
  margin: 0;
}
.page-faq .faq-item__answer a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 53, 0.4);
  transition: border-color 0.2s var(--ease);
}
.page-faq .faq-item__answer a:hover {
  border-bottom-color: var(--color-accent);
}

/* --- 联系技术支持 --- */
.page-faq .faq-contact {
  padding: 44px 16px 52px;
}
.page-faq .faq-contact__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-card), #0A2034);
  border: 1px solid var(--color-blue);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  box-shadow: var(--shadow-1);
}
.page-faq .faq-contact__inner::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(198, 255, 61, 0.1), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.page-faq .faq-contact__inner::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 90px;
  height: 90px;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(198, 255, 61, 0.08));
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  border-radius: 0 0 var(--radius-lg) 0;
}
.page-faq .faq-contact__content {
  position: relative;
  z-index: 1;
}
.page-faq .faq-contact__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 26px;
  margin: 6px 0 10px;
  letter-spacing: -0.01em;
}
.page-faq .faq-contact__lead {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-weak);
  margin-bottom: 20px;
}
.page-faq .faq-contact__rows {
  display: grid;
  gap: 8px;
}
.page-faq .faq-contact__row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 15px;
}
.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-weak);
  flex: none;
  width: 64px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--color-text);
  word-break: break-all;
}
.page-faq .faq-contact__side {
  position: relative;
  z-index: 1;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--faq-line);
}
.page-faq .faq-contact__side-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 4px;
}
.page-faq .faq-contact__side-desc {
  font-size: 13px;
  color: var(--color-text-weak);
  margin-bottom: 14px;
}
.page-faq .faq-contact__btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--color-bg);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  text-decoration: none;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}
.page-faq .faq-contact__btn:hover {
  background: var(--color-lime);
  transform: translateY(-2px);
}

/* --- 桌面端增强 --- */
@media (min-width: 768px) {
  .page-faq .help-hero {
    padding: 56px 24px 64px;
  }
  .page-faq .help-hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
  }
  .page-faq .help-hero__title {
    font-size: 48px;
  }
  .page-faq .help-hero__lead {
    font-size: 16px;
  }
  .page-faq .faq-guide {
    padding: 56px 24px 64px;
  }
  .page-faq .faq-guide__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .page-faq .faq-guide__card {
    padding: 24px 20px;
  }
  .page-faq .faq-guide__name {
    font-size: 22px;
  }
  .page-faq .faq-panel {
    padding: 56px 24px 64px;
  }
  .page-faq .faq-group__body--split {
    grid-template-columns: 1fr 260px;
    gap: 28px;
  }
  .page-faq .faq-contact {
    padding: 56px 24px 64px;
  }
  .page-faq .faq-contact__inner {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 32px;
    align-items: center;
    padding: 36px 40px;
  }
  .page-faq .faq-contact__side {
    margin-top: 0;
    padding-top: 0;
    padding-left: 20px;
    border-top: 0;
    border-left: 1px solid var(--faq-line);
  }
}

@media (min-width: 1024px) {
  .page-faq .help-hero__title {
    font-size: 62px;
  }
  .page-faq .faq-guide__title,
  .page-faq .faq-panel__title {
    font-size: 34px;
  }
  .page-faq .faq-panel__head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
  }
  .page-faq .faq-panel__desc {
    text-align: right;
    max-width: 420px;
  }
}