.page-faq {
  --faq-accent: #FF6A00;
  --faq-live: #39FF14;
  background: var(--c-bg);
  color: var(--c-text);
}

/* ---------- Hero 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 32px 0 72px;
  background: linear-gradient(135deg, rgba(22, 33, 74, 0.9) 0%, rgba(10, 17, 40, 0.4) 60%, rgba(10, 17, 40, 0) 100%);
  border-bottom: 1px solid var(--c-line);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(255, 106, 0, 0.14) 0%, transparent 70%);
  pointer-events: none;
}
.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}
.page-faq .faq-hero__content {
  position: relative;
  z-index: 1;
}
.page-faq .breadcrumb {
  margin-bottom: 18px;
}
.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faq-live);
  margin-bottom: 12px;
}
.page-faq .faq-hero__kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--faq-live);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.15);
}
.page-faq .faq-hero__title {
  font-family: var(--font-h);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 14px;
  letter-spacing: -0.02em;
}
.page-faq .faq-hero__lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text-dim);
  max-width: 560px;
  margin: 0 0 28px;
}
.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  background: rgba(22, 33, 74, 0.65);
  border: 1px solid var(--c-line);
  border-radius: 10px;
  min-width: 92px;
}
.page-faq .faq-hero__stat-num {
  font-family: var(--font-data);
  font-size: 28px;
  font-weight: 700;
  color: var(--faq-accent);
  line-height: 1;
}
.page-faq .faq-hero__stat-num .unit {
  font-size: 14px;
  color: var(--c-text-dim);
  margin-left: 2px;
}
.page-faq .faq-hero__stat-label {
  font-size: 12px;
  color: var(--c-text-faint);
  margin-top: 6px;
}
.page-faq .faq-hero__visual {
  position: relative;
  border-radius: 16px;
  transform: rotate(1.2deg);
  overflow: hidden;
  border: 1px solid var(--c-line);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}
.page-faq .faq-hero__visual::after {
  content: "FAQ";
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 10px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-bg);
  background: var(--faq-accent);
  border-radius: 4px;
}
.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 手风琴主体布局 ---------- */
.page-faq .faq-shell {
  padding: 48px 0 64px;
}
.page-faq .faq-shell__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}

/* 左侧分类导航 */
.page-faq .faq-side {
  position: relative;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 14px;
  padding: 20px;
  overflow: hidden;
}
.page-faq .faq-side::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 64px;
  background: var(--faq-accent);
}
.page-faq .faq-side__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 16px;
}
.page-faq .faq-side__index {
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--faq-live);
}
.page-faq .faq-side__label {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-text);
}
.page-faq .faq-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-faq .faq-side__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--c-text-dim);
  text-decoration: none;
  transition: background 0.22s ease, color 0.22s ease;
}
.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  background: rgba(255, 106, 0, 0.1);
  color: var(--c-text);
}
.page-faq .faq-side__num {
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  color: var(--faq-accent);
  min-width: 28px;
}
.page-faq .faq-side__name {
  font-size: 14px;
  font-weight: 600;
}
.page-faq .faq-side__note {
  margin-top: 16px;
  padding: 12px 14px;
  background: rgba(57, 255, 20, 0.06);
  border: 1px solid rgba(57, 255, 20, 0.15);
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-text-dim);
}
.page-faq .faq-side__note a {
  color: var(--faq-live);
  text-decoration: none;
}
.page-faq .faq-side__note a:hover {
  text-decoration: underline;
}
.page-faq .faq-side__note-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--faq-live);
  margin-right: 5px;
  vertical-align: middle;
}

/* 右侧分组 */
.page-faq .faq-main {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.page-faq .faq-group {
  position: relative;
}
.page-faq .faq-group__head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-line);
  position: relative;
}
.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 48px;
  height: 3px;
  background: var(--faq-accent);
  border-radius: 2px;
}
.page-faq .faq-group__index {
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
  color: var(--faq-accent);
  line-height: 1;
  padding-top: 4px;
}
.page-faq .faq-group__title {
  font-family: var(--font-h);
  font-size: 20px;
  font-weight: 900;
  margin: 0 0 4px;
  line-height: 1.3;
}
.page-faq .faq-group__desc {
  font-size: 13px;
  color: var(--c-text-faint);
  margin: 0;
  line-height: 1.5;
}
.page-faq .faq-group__items {
  display: flex;
  flex-direction: column;
}

/* 手风琴条目 */
.page-faq .faq-item {
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 12px;
  margin-bottom: 10px;
  transition: border-color 0.22s ease, transform 0.22s ease;
  overflow: hidden;
}
.page-faq .faq-item:hover {
  border-color: rgba(255, 106, 0, 0.4);
  transform: translateY(-1px);
}
.page-faq .faq-item[open] {
  border-color: rgba(255, 106, 0, 0.5);
}
.page-faq .faq-item__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  font-family: var(--font-h);
  font-size: 15px;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.4;
  list-style: none;
  user-select: none;
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__summary::-moz-list-bullet {
  list-style: none;
}
.page-faq .faq-item__icon {
  position: relative;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255, 106, 0, 0.12);
  border: 1px solid var(--faq-accent);
}
.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  background: var(--faq-accent);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}
.page-faq .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
}
.page-faq .faq-item__body {
  padding: 0 18px 18px;
  margin-left: 36px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
  animation: faq-body-in 0.3s ease;
}
.page-faq .faq-item__body p {
  margin: 0 0 8px;
}
.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__body a {
  color: var(--faq-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-faq .faq-item__body a:hover {
  color: var(--faq-live);
}
@keyframes faq-body-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 联系支持区 ---------- */
.page-faq .faq-contact {
  position: relative;
  padding: 56px 0;
  background: linear-gradient(100deg, rgba(22, 33, 74, 0.55) 0%, rgba(10, 17, 40, 0.9) 100%);
  border-top: 1px solid var(--c-line);
}
.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
.page-faq .faq-contact__kicker {
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--faq-live);
}
.page-faq .faq-contact__title {
  font-family: var(--font-h);
  font-size: 26px;
  font-weight: 900;
  margin: 8px 0 12px;
}
.page-faq .faq-contact__lead {
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
  margin: 0 0 20px;
  max-width: 480px;
}
.page-faq .faq-contact__list {
  display: flex;
  flex-direction: column;
  margin-bottom: 22px;
}
.page-faq .faq-contact__row {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(29, 46, 90, 0.6);
  font-size: 13px;
}
.page-faq .faq-contact__label {
  min-width: 48px;
  color: var(--c-text-faint);
  font-weight: 600;
}
.page-faq .faq-contact__value {
  color: var(--c-text);
  font-family: var(--font-data);
  font-size: 13px;
  word-break: break-all;
}
.page-faq .btn--primary {
  background: var(--faq-accent);
}
.page-faq .faq-contact__visual {
  position: relative;
  max-width: 260px;
  margin: 0 auto;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--c-line);
  transform: rotate(-1.2deg);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}
.page-faq .faq-contact__visual::before {
  content: "24h";
  position: absolute;
  bottom: 10px;
  right: 10px;
  z-index: 1;
  padding: 4px 10px;
  background: var(--faq-live);
  color: var(--c-bg);
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  border-radius: 4px;
}
.page-faq .faq-contact__img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 桌面端适配 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 56px 0 88px;
  }
  .page-faq .faq-hero__grid {
    grid-template-columns: 1fr 380px;
    gap: 48px;
  }
  .page-faq .faq-hero__title {
    font-size: 42px;
  }
  .page-faq .faq-hero__meta {
    gap: 16px;
  }
  .page-faq .faq-shell {
    padding: 72px 0 88px;
  }
  .page-faq .faq-shell__grid {
    grid-template-columns: 260px 1fr;
    gap: 48px;
  }
  .page-faq .faq-side {
    position: sticky;
    top: 96px;
    padding: 24px;
  }
  .page-faq .faq-group__title {
    font-size: 24px;
  }
  .page-faq .faq-contact {
    padding: 72px 0;
  }
  .page-faq .faq-contact__grid {
    grid-template-columns: 1fr 280px;
    gap: 48px;
  }
  .page-faq .faq-contact__visual {
    margin: 0;
  }
}