/* ===== 常见问题页专属样式 ===== */

.page-faq {
  --faq-panel-bg: rgba(18, 72, 60, 0.72);
  --faq-panel-bg-strong: rgba(11, 59, 46, 0.86);
  --faq-line: rgba(168, 218, 220, 0.22);
  --faq-line-strong: rgba(168, 218, 220, 0.45);
  --faq-gold: var(--gold-500);
  --faq-ice: var(--ice-500);

  box-sizing: border-box;
  color: var(--cream-100);
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(230, 180, 34, 0.12), transparent 60%),
    linear-gradient(165deg, #071f18 0%, #0b3b2e 46%, #071f18 100%);
  padding: 40px 0 88px;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: inherit;
}

/* 面包屑 */
.page-faq .breadcrumbs {
  margin: 0 0 var(--space-xl);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-faq .breadcrumbs a {
  color: var(--ice-500);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover {
  color: var(--gold-500);
}

.page-faq .breadcrumbs [aria-current="page"] {
  color: rgba(245, 243, 239, 0.66);
}

.page-faq .breadcrumbs .slash-line {
  margin: 0 6px;
  color: rgba(245, 243, 239, 0.32);
}

/* 首屏帮助标题 */
.page-faq .faq-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 72px;
  height: 3px;
  background: var(--gold-500);
}

.page-faq .faq-kicker {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-500);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(26px, 4vw, 44px);
  line-height: 1.14;
  letter-spacing: 0.02em;
  max-width: 900px;
}

.page-faq .faq-hero-desc {
  margin: 0;
  max-width: 760px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 243, 239, 0.78);
}

/* 数据概览条 */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin: 0 0 var(--space-xl);
}

.page-faq .faq-stat {
  padding: 10px 14px;
  border-left: 2px solid var(--gold-500);
  background: rgba(5, 25, 18, 0.45);
}

.page-faq .faq-stat-num {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-data);
  font-size: clamp(18px, 3vw, 26px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cream-100);
}

.page-faq .faq-stat-label {
  display: block;
  font-family: var(--font-data);
  font-size: 12px;
  color: rgba(245, 243, 239, 0.58);
}

@media (min-width: 640px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* 两栏布局 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

/* 左侧高频问题索引 */
.page-faq .faq-index {
  padding: var(--space-lg);
  background: var(--faq-panel-bg);
  border: 1px solid var(--faq-line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-faq .faq-index-label {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faq-ice);
}

.page-faq .faq-index-title {
  margin: 0 0 var(--space-md);
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.2;
}

.page-faq .faq-index ul {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index li {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-index ul a {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  padding: 10px 2px;
  color: rgba(245, 243, 239, 0.86);
  text-decoration: none;
  transition: background var(--ease), color var(--ease);
}

.page-faq .faq-index ul a:hover {
  color: var(--gold-300);
  background: rgba(168, 218, 220, 0.08);
}

.page-faq .faq-index ul a:focus-visible {
  outline: 2px solid var(--faq-ice);
  outline-offset: -2px;
}

.page-faq .faq-index-no {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--gold-500);
}

.page-faq .faq-index-more {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--faq-line);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: flex-start;
}

.page-faq .faq-index-more-text {
  margin: 0;
  font-size: 13px;
  color: rgba(245, 243, 239, 0.68);
}

/* 右侧手风琴区块 */
.page-faq .faq-main {
  display: grid;
  gap: var(--space-xl);
}

.page-faq .faq-section {
  padding: var(--space-lg);
  background: var(--faq-panel-bg);
  border: 1px solid var(--faq-line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-faq .faq-section-head {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-section-kicker {
  margin: 0 0 4px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-500);
}

.page-faq .faq-section-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.25;
}

.page-faq .faq-section-desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 243, 239, 0.66);
}

/* 手风琴 */
.page-faq .faq-accordion {
  display: grid;
  gap: var(--space-sm);
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  background: rgba(5, 25, 18, 0.44);
}

.page-faq .faq-item[open] {
  border-color: var(--faq-line-strong);
  background: rgba(7, 31, 24, 0.66);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 12px 14px;
  list-style: none;
  cursor: pointer;
  color: var(--cream-100);
}

.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 summary:focus-visible {
  outline: 2px solid var(--faq-ice);
  outline-offset: -2px;
}

.page-faq .faq-item-id {
  flex-shrink: 0;
  min-width: 30px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--gold-500);
}

.page-faq .faq-item-text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.page-faq .faq-item-icon {
  flex-shrink: 0;
  display: inline-flex;
  width: 20px;
  height: 20px;
  color: var(--faq-ice);
  transition: transform 0.2s ease, color 0.2s ease;
}

.page-faq .faq-item-icon svg {
  display: block;
  width: 20px;
  height: 20px;
}

.page-faq .faq-item[open] .faq-item-icon {
  transform: rotate(45deg);
  color: var(--gold-500);
}

.page-faq .faq-item-body {
  padding: 0 14px 14px 52px;
}

.page-faq .faq-item-body p {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(245, 243, 239, 0.82);
}

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

.page-faq .faq-item-body a {
  color: var(--ice-300);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq .faq-item[open] .faq-item-body {
  animation: faq-fade-in 0.2s ease;
}

@keyframes faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-item-body {
    animation: none;
  }
  .page-faq .faq-item-icon {
    transition: none;
  }
}

/* 图片 */
.page-faq .faq-figure {
  margin: var(--space-md) 0 0;
  padding: var(--space-sm);
  border: 1px dashed var(--faq-line-strong);
  background: rgba(5, 25, 18, 0.35);
}

.page-faq .faq-figure img,
.page-faq .faq-figure figcaption {
  display: block;
}

.page-faq .faq-figure img {
  width: 100%;
  max-width: 500px;
  height: auto;
  object-fit: cover;
  background: #071f18;
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  color: rgba(245, 243, 239, 0.6);
}

/* 底部帮助 */
.page-faq .faq-footer-note {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--faq-panel-bg-strong);
  border: 1px solid var(--faq-line-strong);
}

.page-faq .faq-footer-note-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 18px;
}

.page-faq .faq-footer-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245, 243, 239, 0.78);
}

.page-faq .faq-footer-note-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

/* 桌面布局 */
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: var(--space-2xl);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-offset) + 16px);
  }
}