.page-faq {
  background: var(--c-deep);
  color: var(--c-white);
  overflow-x: hidden;
}

/* ===== 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 116px 0 52px;
  background:
    linear-gradient(115deg, transparent 62%, rgba(228, 0, 43, 0.9) 62%, rgba(228, 0, 43, 0.9) 66%, transparent 66%),
    linear-gradient(180deg, var(--c-deep) 0%, var(--c-navy) 100%);
  border-bottom: 2px solid rgba(255, 196, 0, 0.2);
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  right: -60px;
  top: -40px;
  width: 220px;
  height: 220px;
  background: var(--c-red);
  opacity: 0.13;
  transform: rotate(14deg);
  border-radius: 8px;
  pointer-events: none;
}
.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 36px;
}
.page-faq .faq-hero-copy {
  max-width: 780px;
}
.page-faq .faq-hero-kicker {
  display: inline-block;
  font-family: var(--font-number);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gold);
  border: 1px solid rgba(255, 196, 0, 0.3);
  border-radius: 3px;
  padding: 3px 10px;
  background: rgba(255, 196, 0, 0.06);
}
.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5.2vw, 3.2rem);
  line-height: 1.06;
  letter-spacing: 0.02em;
  margin: 20px 0 16px;
  color: var(--c-white);
}
.page-faq .faq-hl {
  font-style: normal;
  color: var(--c-gold);
}
.page-faq .faq-hero-lead {
  color: var(--c-slate);
  font-size: 1.0625rem;
  line-height: 1.75;
  max-width: 640px;
  margin: 0;
}
.page-faq .faq-hero-stat {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  width: 100%;
}
.page-faq .faq-hero-stat .metric {
  flex: 1 1 128px;
  background: rgba(16, 42, 92, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 18px 16px 20px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.page-faq .faq-hero-stat .metric::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-red), var(--c-gold));
  transform: scaleX(0.92);
  transform-origin: left;
}
.page-faq .faq-hero-stat .metric-value {
  font-family: var(--font-number);
  font-size: 2.125rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-gold);
  display: block;
}
.page-faq .faq-hero-stat .metric-label {
  display: block;
  margin-top: 8px;
  font-size: 0.8125rem;
  color: var(--c-slate);
  line-height: 1.4;
}
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--c-slate);
  font-size: 0.875rem;
  padding: 0;
  margin-bottom: 32px;
}
.page-faq .breadcrumb a {
  color: var(--c-slate);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover {
  color: var(--c-gold);
}
.page-faq .breadcrumb [aria-current='page'] {
  color: var(--c-gold);
}

/* ===== 分类索引 ===== */
.page-faq .faq-index {
  padding: 24px 0 44px;
}
.page-faq .faq-index-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.page-faq .faq-index-item {
  position: relative;
  display: block;
  background: var(--c-navy);
  border-radius: var(--radius);
  padding: 20px 18px;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 3px solid var(--c-red);
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}
.page-faq .faq-index-item::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  border-style: solid;
  border-width: 0 26px 26px 0;
  border-color: transparent rgba(228, 0, 43, 0.28) transparent transparent;
}
.page-faq .faq-index-item:hover {
  transform: translateY(-4px);
  border-bottom-color: var(--c-gold);
  background: rgba(16, 42, 92, 0.9);
}
.page-faq .faq-index-num {
  font-family: var(--font-number);
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--c-gold);
  display: block;
  line-height: 1;
}
.page-faq .faq-index-title {
  display: block;
  margin-top: 10px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--c-white);
}
.page-faq .faq-index-count {
  display: block;
  margin-top: 4px;
  font-size: 0.8125rem;
  color: var(--c-slate);
}

/* ===== 问题区通用 ===== */
.page-faq .faq-section {
  padding: 48px 0 56px;
}
.page-faq .faq-section--alt {
  background:
    repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.018) 0 2px, transparent 2px 14px),
    linear-gradient(180deg, rgba(16, 42, 92, 0.55) 0%, rgba(10, 31, 68, 0.2) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.page-faq .faq-section-head {
  position: relative;
  padding-left: 16px;
  margin-bottom: 28px;
}
.page-faq .faq-section-head::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  width: 4px;
  height: calc(100% - 8px);
  background: linear-gradient(180deg, var(--c-red), var(--c-gold));
}
.page-faq .faq-section-head .section-kicker,
.page-faq .faq-split-main .section-kicker {
  font-family: var(--font-number);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--c-gold);
}
.page-faq .faq-section-head h2,
.page-faq .faq-split-main .section-head h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.625rem, 3.4vw, 2.25rem);
  color: var(--c-white);
  margin: 8px 0 6px;
  line-height: 1.15;
}
.page-faq .faq-section-head .section-lead,
.page-faq .faq-split-main .section-lead {
  color: var(--c-slate);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
}
.page-faq .faq-section-more {
  margin: 24px 0 0;
  color: var(--c-slate);
  font-size: 0.9375rem;
}
.page-faq .faq-section-more a {
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 196, 0, 0.4);
}
.page-faq .faq-section-more a:hover {
  border-bottom-color: var(--c-gold);
}

/* ===== 分栏与视觉图 ===== */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}
.page-faq .faq-split-main .section-head {
  margin-bottom: 24px;
}
.page-faq .faq-visual {
  position: relative;
  border-radius: calc(var(--radius) + 2px);
  overflow: hidden;
  background: var(--c-navy);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.page-faq .faq-visual::after {
  content: 'FIELD DATA';
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 1;
  font-family: var(--font-number);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(228, 0, 43, 0.72);
  padding: 4px 12px;
}
.page-faq .faq-visual--tablet::after {
  content: 'TABLET GUIDE';
}
.page-faq .faq-visual--data::after {
  content: 'LEADERBOARD DATA';
}
.page-faq .faq-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== 手风琴 ===== */
.page-faq .faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.page-faq .faq-q {
  position: relative;
  background: linear-gradient(135deg, rgba(16, 42, 92, 0.88), rgba(10, 31, 68, 0.84));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.page-faq .faq-q::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--c-red);
  z-index: 1;
}
.page-faq .faq-q[open] {
  border-color: rgba(255, 196, 0, 0.32);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
}
.page-faq .faq-q[open]::before {
  background: var(--c-gold);
}
.page-faq .faq-q summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}
.page-faq .faq-q summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-q summary:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: -2px;
}
.page-faq .faq-q summary::after {
  content: '+';
  margin-left: auto;
  font-family: var(--font-number);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--c-gold);
  transition: transform 0.28s ease;
  flex-shrink: 0;
}
.page-faq .faq-q[open] summary::after {
  transform: rotate(45deg);
}
.page-faq .faq-q-num {
  font-family: var(--font-number);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-red);
  background: rgba(228, 0, 43, 0.1);
  border: 1px solid rgba(228, 0, 43, 0.24);
  padding: 4px 8px;
  border-radius: 4px;
  flex-shrink: 0;
  letter-spacing: 0.04em;
}
.page-faq .faq-q[open] .faq-q-num {
  color: var(--c-gold);
  border-color: rgba(255, 196, 0, 0.3);
  background: rgba(255, 196, 0, 0.08);
}
.page-faq .faq-q-text {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.5;
}
.page-faq .faq-a {
  padding: 0 20px 18px 42px;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
}
.page-faq .faq-a-tldr {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 0 8px;
  color: var(--c-white);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.55;
}
.page-faq .faq-a-detail {
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: var(--c-slate);
  font-size: 0.875rem;
  line-height: 1.72;
}
.page-faq .faq-a-detail p {
  margin: 0;
}
.page-faq .faq-a-tldr .label,
.page-faq .faq-a-detail .label {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: 3px;
  background: rgba(228, 0, 43, 0.1);
  color: var(--c-gold);
  border: 1px solid rgba(255, 196, 0, 0.2);
  text-transform: uppercase;
}
.page-faq .faq-num {
  font-family: var(--font-number);
  color: var(--c-gold);
  font-weight: 700;
}
.page-faq .faq-q[open] .faq-a {
  animation: faq-page-reveal 0.3s ease;
}
@keyframes faq-page-reveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ===== 联系支持 ===== */
.page-faq .faq-section--support {
  background: linear-gradient(180deg, rgba(16, 42, 92, 0.65) 0%, rgba(10, 31, 68, 0.9) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.page-faq .faq-support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-faq .faq-support-card {
  position: relative;
  overflow: hidden;
  background: rgba(10, 31, 68, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 26px 22px;
}
.page-faq .faq-support-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-red), var(--c-gold));
}
.page-faq .faq-support-card .label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-gold);
  border: 1px solid rgba(255, 196, 0, 0.3);
  border-radius: 3px;
  padding: 3px 10px;
  background: rgba(255, 196, 0, 0.06);
  text-transform: uppercase;
}
.page-faq .faq-support-value {
  margin: 18px 0 10px;
  font-family: var(--font-number);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--c-white);
  line-height: 1.45;
  word-break: break-all;
}
.page-faq .faq-support-card--address .faq-support-value {
  font-family: var(--font-body);
  font-size: 1rem;
  word-break: normal;
}
.page-faq .faq-support-meta {
  margin: 0;
  font-size: 0.875rem;
  color: var(--c-slate);
  line-height: 1.6;
}
.page-faq .faq-support-note {
  margin-top: 32px;
  padding: 24px;
  background: linear-gradient(135deg, rgba(228, 0, 43, 0.1), rgba(255, 196, 0, 0.05));
  border: 1px solid rgba(255, 196, 0, 0.2);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
}
.page-faq .faq-support-note p {
  margin: 0;
  color: var(--c-slate);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 78ch;
}
.page-faq .faq-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-faq .faq-support-actions .btn {
  background: var(--c-red);
  color: var(--c-white);
  border: 1px solid var(--c-red);
  border-radius: 6px;
  padding: 10px 22px;
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(228, 0, 43, 0.26);
  transition: background-color 0.2s ease, transform 0.2s ease;
}
.page-faq .faq-support-actions .btn:hover {
  background: var(--c-dark-red);
  border-color: var(--c-dark-red);
  transform: translateY(-2px);
}
.page-faq .faq-support-actions .btn--ghost {
  background: transparent;
  color: var(--c-gold);
  border: 1px solid rgba(255, 196, 0, 0.55);
  box-shadow: none;
}
.page-faq .faq-support-actions .btn--ghost:hover {
  background: rgba(255, 196, 0, 0.08);
  color: var(--c-gold);
  border-color: var(--c-gold);
}

/* ===== 响应式与动效偏好 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero-inner {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 48px;
  }
  .page-faq .faq-hero-stat {
    width: auto;
    flex-shrink: 0;
    max-width: 480px;
  }
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
  .page-faq .faq-support-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(260px, 340px) 1fr;
    gap: 44px;
  }
  .page-faq .faq-split--reverse {
    grid-template-columns: 1fr minmax(260px, 340px);
  }
  .page-faq .faq-split--reverse .faq-visual {
    order: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q[open] .faq-a {
    animation: none;
  }
  .page-faq .faq-index-item,
  .page-faq .faq-support-actions .btn,
  .page-faq .faq-support-actions .btn--ghost {
    transition: none;
  }
}