/* ===== FAQ 帮助中心页面专属样式 ===== */
.page-faq {
  --faq-line: rgba(10, 42, 94, 0.12);
  --faq-gold-soft: rgba(245, 183, 0, 0.16);
  background: var(--color-sand);
}

/* ---------- Hero 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-indigo) 100%);
  color: var(--color-white);
  padding: var(--space-xl) 0 var(--space-lg);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -2rem;
  bottom: -5rem;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  border: 2px solid rgba(245, 183, 0, 0.24);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 8%;
  bottom: 1.5rem;
  width: 12%;
  height: 4px;
  background: var(--color-gold);
  border-radius: 2px;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-lg);
}

.page-faq .faq-hero__kicker,
.page-faq .faq-steps__kicker {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 var(--space-xs);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.12;
  margin: 0 0 var(--space-md);
  max-width: 15em;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.86);
  max-width: 36em;
  margin: 0 0 var(--space-md);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
}

.page-faq .faq-hero__cta {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.page-faq .faq-hero__cta:hover {
  background: var(--color-gold);
  color: var(--color-navy);
  border-color: var(--color-gold);
}

.page-faq .faq-hero__link {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 0.2rem;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-hero__link:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.page-faq .faq-hero__visual {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-strong);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

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

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding: var(--space-md) 0 var(--space-lg);
}

/* ---------- 主布局：索引 + 问答 ---------- */
.page-faq .faq-layout {
  padding-bottom: var(--space-xl);
  display: grid;
  gap: var(--space-lg);
}

.page-faq .faq-index {
  background: var(--color-indigo);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: var(--space-md);
}

.page-faq .faq-index__label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 var(--space-sm);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__list li {
  flex-shrink: 0;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 0.88rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  white-space: nowrap;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-index__list a:hover {
  background: var(--faq-gold-soft);
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.page-faq .faq-index__num {
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: var(--color-gold);
}

.page-faq .faq-index__note {
  display: none;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-index__note strong {
  display: block;
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-content {
  display: grid;
  gap: var(--space-xl);
}

.page-faq .faq-section {
  scroll-margin-top: 1rem;
}

.page-faq .faq-section__head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-navy);
}

.page-faq .faq-section__index {
  font-family: var(--font-display);
  font-size: 2.4rem;
  line-height: 1;
  color: var(--color-wine);
}

.page-faq .faq-section:nth-child(1) .faq-section__index {
  color: var(--color-navy);
}

.page-faq .faq-section:nth-child(3) .faq-section__index {
  color: var(--color-forest);
}

.page-faq .faq-section:nth-child(4) .faq-section__index {
  color: var(--color-alert);
}

.page-faq .faq-section__head h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.2;
  color: var(--color-navy);
  margin: 0 0 0.2rem;
}

.page-faq .faq-section__head p {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: rgba(45, 45, 45, 0.65);
  margin: 0;
}

/* ---------- 问答手风琴 ---------- */
.page-faq .qa-card {
  background: var(--color-white);
  border: 1px solid var(--faq-line);
  border-left: 4px solid var(--color-navy);
  border-radius: var(--radius);
  margin-bottom: var(--space-sm);
  transition: box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .qa-card:hover {
  border-color: rgba(10, 42, 94, 0.3);
}

.page-faq .qa-card[open] {
  box-shadow: var(--shadow-soft);
  border-left-color: var(--color-gold);
}

.page-faq .qa-card summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-ink);
  padding: var(--space-md);
  padding-right: 3rem;
  position: relative;
}

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

.page-faq .qa-card summary::after {
  content: "";
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  border: 1px solid var(--color-navy);
  background:
    linear-gradient(var(--color-navy), var(--color-navy)) center / 8px 1.5px no-repeat,
    linear-gradient(var(--color-navy), var(--color-navy)) center / 1.5px 8px no-repeat;
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .qa-card[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
  background-color: var(--color-navy);
}

.page-faq .qa-card__body {
  padding: 0 var(--space-md) var(--space-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-ink);
}

.page-faq .qa-card__body p {
  margin: 0 0 0.8rem;
}

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

.page-faq .qa-card__body a {
  color: var(--color-navy);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s var(--ease);
}

.page-faq .qa-card__body a:hover {
  color: var(--color-wine);
}

/* ---------- 帮助步骤图 ---------- */
.page-faq .faq-steps {
  background: var(--color-wine);
  color: var(--color-white);
  padding: var(--space-2xl) 0;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: -3rem;
  top: -3rem;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 2px solid rgba(245, 183, 0, 0.25);
  pointer-events: none;
}

.page-faq .faq-steps .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-steps__head {
  margin-bottom: var(--space-lg);
}

.page-faq .faq-steps__head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 0.4rem;
}

.page-faq .faq-steps__head p {
  font-family: var(--font-body);
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
  max-width: 34em;
}

.page-faq .faq-steps__media {
  margin-bottom: var(--space-lg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow-strong);
}

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

.page-faq .faq-step-grid {
  list-style: none;
  margin: 0;
  padding: 0 0 var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  display: grid;
  gap: var(--space-sm);
}

.page-faq .faq-step {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: var(--space-md);
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-faq .faq-step:hover {
  background: rgba(245, 183, 0, 0.14);
  border-color: var(--color-gold);
  transform: translateY(-3px);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  margin-bottom: 0.5rem;
}

.page-faq .faq-step h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 0 0.4rem;
  color: var(--color-white);
}

.page-faq .faq-step p {
  font-family: var(--font-body);
  font-size: 0.85rem;
  line-height: 1.7;
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
}

.page-faq .faq-steps__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  padding-top: var(--space-lg);
}

.page-faq .faq-steps__btn {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-navy);
}

.page-faq .faq-steps__btn:hover {
  background: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.page-faq .faq-steps__link {
  color: rgba(255, 255, 255, 0.78);
  font-family: var(--font-display);
  font-size: 0.88rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.34);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-steps__link:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: calc(var(--space-xl) * 1.4) 0 var(--space-xl);
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: 1.3fr 0.9fr;
    align-items: center;
    gap: var(--space-xl);
  }

  .page-faq .faq-layout {
    grid-template-columns: 230px minmax(0, 1fr);
    align-items: start;
    gap: var(--space-xl);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 1.5rem;
    padding: var(--space-md);
  }

  .page-faq .faq-index__label {
    margin-bottom: var(--space-sm);
  }

  .page-faq .faq-index__list {
    display: block;
    gap: 0;
    overflow: visible;
  }

  .page-faq .faq-index__list li {
    flex-shrink: 0;
  }

  .page-faq .faq-index__list a {
    border-radius: 0;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    padding: 0.7rem 0.2rem;
    white-space: nowrap;
    font-size: 0.92rem;
    transition: padding-left 0.2s var(--ease), color 0.2s var(--ease);
  }

  .page-faq .faq-index__list a:hover {
    background: transparent;
    padding-left: 0.5rem;
  }

  .page-faq .faq-index__num {
    display: inline-block;
    width: 1.8em;
  }

  .page-faq .faq-index__note {
    display: block;
  }

  .page-faq .faq-section__head {
    gap: var(--space-md);
  }

  .page-faq .faq-section__index {
    font-size: 3rem;
  }

  .page-faq .faq-step-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    padding-top: var(--space-xs);
  }
}