.page-faq {
  --faq-gold: #d4af37;
  --faq-gold-soft: #e7c766;
  --faq-red: #8b0000;
  background: var(--color-bg);
  color: var(--color-text);
  scroll-behavior: smooth;
}

/* ===== 首屏帮助中心 ===== */
.page-faq .faq-hero {
  background:
    radial-gradient(circle, rgba(212, 175, 55, .32) 0 1px, transparent 1.6px) 22px 28px / 64px 72px repeat,
    radial-gradient(circle, rgba(212, 175, 55, .18) 0 1px, transparent 1.6px) 120px 96px / 96px 110px repeat,
    linear-gradient(135deg, #0B3D2E 0%, #0A3025 58%, #0A1A14 100%);
  border-bottom: 3px solid var(--faq-gold);
  padding: 28px 0 40px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 32%;
  height: 100%;
  background: linear-gradient(160deg, rgba(212, 175, 55, .16), transparent 70%);
  pointer-events: none;
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  color: rgba(255, 255, 255, .45);
  font-family: var(--font-mono);
}

.page-faq .breadcrumbs a {
  color: rgba(255, 255, 255, .72);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--faq-gold-soft);
  outline: none;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq .breadcrumbs [aria-current="page"] {
  color: var(--faq-gold);
  font-weight: 500;
}

.page-faq .faq-hero__content {
  position: relative;
  z-index: 1;
  margin-top: 36px;
}

.page-faq .faq-hero__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--faq-gold);
  background: rgba(212, 175, 55, .1);
  border: 1px solid rgba(212, 175, 55, .35);
  padding: 6px 12px;
  margin-bottom: 16px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-size: 30px;
  line-height: 1.25;
  color: #fff;
  margin: 0 0 14px;
  letter-spacing: .02em;
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 247, 246, .82);
  max-width: 720px;
  margin: 0;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 32px 0 0;
  overflow: hidden;
  background: #0B3D2E;
  border: 1px solid rgba(212, 175, 55, .35);
  border-top: 2px solid var(--faq-gold);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 55%;
  background: linear-gradient(180deg, transparent, rgba(10, 26, 20, .65));
  pointer-events: none;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-faq .faq-hero__figure figcaption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 1;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .05em;
  background: rgba(11, 61, 46, .78);
  border-left: 3px solid var(--faq-gold);
  padding: 8px 12px;
  margin: 0;
}

/* ===== 正文主体 ===== */
.page-faq .faq-section {
  padding: 48px 0 72px;
}

.page-faq .faq-section__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

/* ===== 左侧目录 ===== */
.page-faq .faq-nav {
  display: grid;
  gap: 16px;
}

.page-faq .faq-nav__card {
  background: linear-gradient(135deg, #0B3D2E 0%, #0A1A14 100%);
  border: 1px solid rgba(212, 175, 55, .3);
  border-top: 3px solid var(--faq-gold);
  padding: 20px 16px;
}

.page-faq .faq-nav__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--faq-gold);
  text-transform: uppercase;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(212, 175, 55, .25);
  padding-bottom: 10px;
}

.page-faq .faq-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faq-index;
}

.page-faq .faq-nav__list li {
  counter-increment: faq-index;
  border-bottom: 1px solid rgba(245, 247, 246, .08);
}

.page-faq .faq-nav__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: rgba(245, 247, 246, .85);
  text-decoration: none;
  padding: 12px 6px;
  font-size: 15px;
  line-height: 1.4;
  transition: color .2s var(--ease), background .2s var(--ease), padding-left .2s var(--ease);
}

.page-faq .faq-nav__list a span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faq-gold);
  min-width: 2em;
}

.page-faq .faq-nav__list a:hover,
.page-faq .faq-nav__list a:focus-visible {
  color: #fff;
  background: rgba(212, 175, 55, .12);
  padding-left: 14px;
  outline: none;
}

.page-faq .faq-trust {
  position: relative;
  background: #fff;
  border: 1px dashed var(--color-line);
  border-left: 3px solid var(--faq-gold);
  padding: 18px 16px 18px 20px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-sub);
}

.page-faq .faq-trust__dot {
  position: absolute;
  left: -5px;
  top: -5px;
  width: 10px;
  height: 10px;
  background: var(--faq-gold);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(212, 175, 55, .2);
}

.page-faq .faq-trust p {
  margin: 0;
}

/* ===== 右侧内容面板 ===== */
.page-faq .faq-panels {
  display: grid;
  gap: 48px;
}

.page-faq .faq-cat {
  scroll-margin-top: 24px;
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--color-line);
  padding-bottom: 12px;
}

.page-faq .faq-cat__index {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: var(--color-primary);
  border-left: 3px solid var(--faq-gold);
  padding: 6px 10px;
  letter-spacing: .08em;
}

.page-faq .faq-cat h2 {
  font-family: var(--font-serif);
  font-size: 22px;
  margin: 0;
  color: var(--color-primary);
  letter-spacing: .02em;
}

/* ===== 手风琴条目 ===== */
.page-faq .faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-item {
  background: #fff;
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-line);
  margin-bottom: 12px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-item:hover {
  border-left-color: var(--faq-gold);
  box-shadow: -3px 3px 0 rgba(212, 175, 55, .22);
  transform: translateX(3px);
}

.page-faq .faq-item details[open] {
  border-left-color: var(--color-primary);
  box-shadow: -3px 3px 0 rgba(11, 61, 46, .18);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
  cursor: pointer;
  padding: 18px 16px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-text);
  background: #fff;
  transition: color .2s var(--ease), background .2s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "";
  flex: 0 0 10px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--faq-gold);
  border-bottom: 2px solid var(--faq-gold);
  transform: rotate(45deg);
  transition: transform .25s var(--ease);
  margin-top: -4px;
}

.page-faq .faq-item details[open] summary::after {
  transform: rotate(225deg);
  margin-top: 2px;
}

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--color-primary);
  background: rgba(212, 175, 55, .06);
  outline: none;
}

.page-faq .faq-item details[open] summary {
  color: var(--color-primary);
  background: rgba(11, 61, 46, .04);
}

.page-faq .faq-item__body {
  padding: 2px 16px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-sub);
  border-top: 1px dashed var(--color-line);
}

.page-faq .faq-item__body p:first-child {
  margin-top: 14px;
}

.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--faq-gold);
  font-weight: 500;
  transition: color .2s var(--ease);
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-item__body a:focus-visible {
  color: var(--faq-red);
  outline: none;
}

/* ===== 数据流程图 ===== */
.page-faq .faq-figure {
  margin: 24px 0 0;
  background: #fff;
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-primary);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-sub);
  background: rgba(11, 61, 46, .05);
  padding: 12px 16px;
  border-top: 1px solid var(--color-line);
}

/* ===== 底部升级帮助 ===== */
.page-faq .faq-help {
  background:
    radial-gradient(circle, rgba(212, 175, 55, .16) 0 1px, transparent 1.6px) 18px 20px / 48px 52px repeat,
    linear-gradient(135deg, #0B3D2E 0%, #0A1A14 100%);
  border-top: 3px solid var(--faq-gold);
  border-bottom: 1px solid rgba(212, 175, 55, .3);
  padding: 36px clamp(20px, 4vw, 48px);
}

.page-faq .faq-help__inner {
  max-width: 640px;
}

.page-faq .faq-help__code {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--faq-gold);
  margin-bottom: 12px;
}

.page-faq .faq-help h2 {
  font-family: var(--font-serif);
  font-size: 26px;
  color: #fff;
  margin: 0 0 12px;
}

.page-faq .faq-help p {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 247, 246, .82);
  margin: 0 0 24px;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-help .btn--gold {
  border: 1px solid var(--faq-gold);
  background: var(--faq-gold);
  color: #0A1A14;
  font-weight: 700;
  padding: 12px 20px;
  text-decoration: none;
  transition: background .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-help .btn--gold:hover,
.page-faq .faq-help .btn--gold:focus-visible {
  background: var(--faq-gold-soft);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(212, 175, 55, .28);
  outline: none;
}

.page-faq .faq-help .btn--ghost {
  border: 1px solid rgba(212, 175, 55, .55);
  background: transparent;
  color: var(--faq-gold);
  font-weight: 700;
  padding: 12px 20px;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-help .btn--ghost:hover,
.page-faq .faq-help .btn--ghost:focus-visible {
  background: rgba(212, 175, 55, .12);
  color: #fff;
  transform: translateY(-2px);
  outline: none;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 32px 0 56px;
  }

  .page-faq .faq-hero h1 {
    font-size: 42px;
    max-width: 14em;
  }

  .page-faq .faq-hero__lead {
    font-size: 16px;
    max-width: 780px;
  }

  .page-faq .faq-hero__figure figcaption {
    left: 24px;
    bottom: 22px;
    font-size: 14px;
  }

  .page-faq .faq-section {
    padding: 80px 0 108px;
  }

  .page-faq .faq-section__grid {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 48px;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-nav__card {
    padding: 24px 20px;
  }

  .page-faq .faq-panels {
    gap: 64px;
  }

  .page-faq .faq-cat__head {
    gap: 18px;
  }

  .page-faq .faq-cat h2 {
    font-size: 28px;
  }

  .page-faq .faq-item summary {
    padding: 20px 20px;
    font-size: 17px;
  }

  .page-faq .faq-item__body {
    padding: 4px 20px 24px;
    font-size: 16px;
  }

  .page-faq .faq-help {
    padding: 56px clamp(28px, 5vw, 64px);
  }

  .page-faq .faq-help h2 {
    font-size: 30px;
  }
}