/* ========== 页面专属：page-faq ========== */
.page-faq {
  --faq-accent: #FF6B35;
  --faq-cyan: #00E5FF;
  --faq-paper: #F5F0E6;
  --faq-paper-dim: #EFE9DC;
  --faq-bg-line: rgba(245, 240, 230, 0.08);
  --faq-border-line: rgba(245, 240, 230, 0.18);
  --faq-text: #F5F0E6;
  --faq-stone: #A8A29E;
  --faq-ice: #8B9BB4;
  --faq-moss: #7A9E7E;
  --faq-clay: #C67C5B;

  background-color: #0A1F44;
  position: relative;
  overflow-x: hidden;
}

.page-faq::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    radial-gradient(circle at 15% 10%, rgba(255, 107, 53, 0.12), transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(0, 229, 255, 0.10), transparent 45%),
    linear-gradient(135deg, rgba(245, 240, 230, 0.02) 25%, transparent 25%) 0 0 / 32px 32px;
  z-index: 0;
}

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

/* ========== 面包屑 ========== */
.page-faq .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 24px;
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-faq .breadcrumbs__link {
  color: var(--faq-ice);
  text-decoration: none;
  transition: color var(--ease);
  font-family: var(--font-mono);
}

.page-faq .breadcrumbs__link:hover {
  color: var(--faq-cyan);
}

.page-faq .breadcrumbs__current {
  color: var(--faq-accent);
  font-family: var(--font-mono);
  padding: 2px 10px;
  border: 1px solid var(--faq-accent);
  border-radius: 2px;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-faq .breadcrumbs::after {
  content: "/";
  color: var(--faq-stone);
  font-family: var(--font-mono);
  opacity: 0.6;
  margin-right: 4px;
  display: none;
}

/* ========== 首屏标题区 ========== */
.page-faq-hero {
  padding: 52px 0 64px;
  border-bottom: 1px solid var(--faq-border-line);
  position: relative;
}

.page-faq-hero::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 120px;
  height: 3px;
  background: linear-gradient(90deg, var(--faq-accent), var(--faq-cyan));
}

.page-faq-hero__inner {
  max-width: 880px;
}

.page-faq-hero__meta {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.page-faq-hero__kicker {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faq-cyan);
  border-left: 3px solid var(--faq-accent);
  padding-left: 12px;
}

.page-faq-hero__count {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--faq-stone);
  background: rgba(245, 240, 230, 0.06);
  border: 1px solid var(--faq-border-line);
  padding: 4px 12px;
  border-radius: 2px;
}

.page-faq-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(34px, 6vw, 62px);
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--faq-text);
  margin: 0 0 22px;
  text-transform: uppercase;
  position: relative;
}

.page-faq-hero__title::before {
  content: "FAQ";
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--faq-accent);
  display: block;
  margin-bottom: 14px;
}

.page-faq-hero__lede {
  font-size: 16px;
  line-height: 1.8;
  color: #CBD5E0;
  max-width: 66ch;
  margin: 0;
}

.page-faq-hero__stats {
  display: flex;
  gap: 28px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.page-faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-right: 28px;
  border-right: 1px solid var(--faq-border-line);
}

.page-faq-hero__stat:last-child {
  border-right: none;
}

.page-faq-hero__stat-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--faq-text);
  line-height: 1.2;
}

.page-faq-hero__stat-label {
  font-size: 13px;
  color: var(--faq-stone);
  letter-spacing: 0.04em;
}

/* ========== 整体布局：主区 + 侧边栏 ========== */
.page-faq-layout {
  display: flex;
  gap: 48px;
  padding-top: 72px;
  padding-bottom: 88px;
  align-items: flex-start;
}

.page-faq-main {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 860px;
}

/* ========== 侧边栏 ========== */
.page-faq-aside {
  width: 280px;
  flex: 0 0 280px;
  position: sticky;
  top: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-faq-aside .panel {
  background: rgba(245, 240, 230, 0.04);
  border: 1px solid var(--faq-border-line);
  padding: 22px;
  position: relative;
}

.page-faq-aside .panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--faq-accent);
}

.page-faq-aside__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-faq-aside__item {
  margin-bottom: 2px;
}

.page-faq-aside__link {
  display: block;
  padding: 10px 12px;
  color: var(--faq-ice);
  text-decoration: none;
  font-size: 14px;
  border-left: 2px solid transparent;
  transition: all var(--ease);
  font-family: var(--font-mono);
}

.page-faq-aside__link:hover {
  color: var(--faq-cyan);
  border-left-color: var(--faq-cyan);
  background: rgba(0, 229, 255, 0.06);
}

.page-faq-aside__contact {
  background: linear-gradient(145deg, rgba(255, 107, 53, 0.14), rgba(10, 31, 68, 0.4)) !important;
}

.page-faq-aside__contact-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-text);
  margin: 12px 0 18px;
}

.page-faq-aside__btn {
  display: inline-flex;
}

.page-faq-aside__update-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-stone);
  margin: 12px 0 0;
}

.page-faq-aside__update-text + .page-faq-aside__update-text {
  margin-top: 8px;
}

/* ========== 分区 ========== */
.page-faq-section {
  margin-bottom: 84px;
  position: relative;
}

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

.page-faq-section__head {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 30px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--faq-border-line);
  position: relative;
}

.page-faq-section__index {
  font-family: var(--font-mono);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--faq-accent);
  display: block;
  min-width: 62px;
  position: relative;
}

.page-faq-section--download .page-faq-section__index {
  -webkit-text-stroke: 1px var(--faq-cyan);
}

.page-faq-section--directory .page-faq-section__index {
  -webkit-text-stroke: 1px var(--faq-moss);
}

.page-faq-section--security .page-faq-section__index {
  -webkit-text-stroke: 1px var(--faq-clay);
}

.page-faq-section__title {
  font-size: 24px;
  color: var(--faq-text);
  margin: 0 0 6px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-faq-section__desc {
  font-size: 14px;
  color: var(--faq-stone);
  margin: 0;
  line-height: 1.6;
}

/* ========== 手风琴 ========== */
.page-faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq-item {
  background: rgba(245, 240, 230, 0.03);
  border: 1px solid var(--faq-border-line);
  border-left: 4px solid transparent;
  transition: border-color var(--ease), background var(--ease);
}

.page-faq-item[open] {
  border-left-color: var(--faq-accent);
  background: rgba(245, 240, 230, 0.045);
}

.page-faq-section--download .page-faq-item[open] {
  border-left-color: var(--faq-cyan);
}

.page-faq-section--directory .page-faq-item[open] {
  border-left-color: var(--faq-moss);
}

.page-faq-section--security .page-faq-item[open] {
  border-left-color: var(--faq-clay);
}

.page-faq-item__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq-item__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--faq-accent);
  flex-shrink: 0;
  transition: transform var(--ease), color var(--ease);
}

.page-faq-section--download .page-faq-item__summary::after {
  color: var(--faq-cyan);
}

.page-faq-section--directory .page-faq-item__summary::after {
  color: var(--faq-moss);
}

.page-faq-section--security .page-faq-item__summary::after {
  color: var(--faq-clay);
}

.page-faq-item[open] .page-faq-item__summary::after {
  transform: rotate(45deg);
}

.page-faq-item__summary:hover {
  background: rgba(255, 107, 53, 0.04);
}

.page-faq-section--download .page-faq-item__summary:hover {
  background: rgba(0, 229, 255, 0.04);
}

.page-faq-item__q {
  font-size: 17px;
  font-weight: 600;
  color: var(--faq-text);
  letter-spacing: 0.02em;
  flex: 1;
}

.page-faq-item__tag {
  font-size: 12px;
  flex-shrink: 0;
}

.page-faq-item__answer {
  padding: 4px 24px 26px;
  animation: page-faq-fade-in 260ms ease both;
}

@keyframes page-faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq-item__answer--split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq-item__text {
  font-size: 15px;
  line-height: 1.8;
  color: #E2DED2;
  margin: 0 0 14px;
}

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

.page-faq-item__text strong {
  color: var(--faq-text);
}

/* ========== 指标卡片 ========== */
.page-faq-item__metrics {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.page-faq-item .metric {
  background: var(--faq-paper);
  padding: 14px 16px;
  border-radius: 2px;
  min-width: 110px;
}

.page-faq-item .metric__value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: #0A1F44;
  display: block;
}

.page-faq-item .metric__label {
  font-size: 12px;
  color: rgba(10, 31, 68, 0.65);
  display: block;
  margin-top: 4px;
}

.page-faq-item__metric-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 18px 0 0;
}

/* ========== 步骤 / 列表 ========== */
.page-faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq-steps__item {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--faq-border-line);
}

.page-faq-steps__item:last-child {
  border-bottom: none;
}

.page-faq-steps__num {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--faq-accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
}

.page-faq-steps__content {
  font-size: 14px;
  line-height: 1.7;
  color: #E2DED2;
}

.page-faq-steps__content strong {
  color: var(--faq-text);
}

.page-faq-list {
  margin: 0 0 14px;
  padding-left: 20px;
}

.page-faq-list__item {
  font-size: 14px;
  line-height: 1.8;
  color: #E2DED2;
  padding-left: 4px;
  margin-bottom: 4px;
}

.page-faq-list__item::marker {
  color: var(--faq-accent);
}

/* ========== 图片 ========== */
.page-faq-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  border: 1px solid var(--faq-border-line);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  position: relative;
}

.page-faq-image--step {
  border-radius: 2px;
}

.page-faq-image--icon {
  border-radius: 50%;
  margin: 0 auto;
}

/* ========== 安全认证卡 ========== */
.page-faq-security-card {
  display: flex;
  gap: 16px;
  background: var(--faq-paper);
  padding: 22px;
  border-radius: 2px;
  align-items: flex-start;
}

.page-faq-security-card__icon {
  flex-shrink: 0;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--faq-clay);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.3;
  text-align: center;
}

.page-faq-security-card__title {
  font-size: 16px;
  color: #0A1F44;
  margin: 0 0 6px;
  font-weight: 700;
}

.page-faq-security-card__text {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(10, 31, 68, 0.72);
  margin: 0;
}

/* ========== 表格 ========== */
.page-faq-item__table {
  margin-top: 16px;
}

.page-faq-item .table-wrap {
  background: var(--faq-paper);
  border-radius: 2px;
  overflow-x: auto;
}

.page-faq-item .table-wrap .data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 430px;
  font-size: 13px;
}

.page-faq-item .data-table th {
  background: #0A1F44;
  color: var(--faq-text);
  text-align: left;
  padding: 12px 14px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.page-faq-item .data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid rgba(10, 31, 68, 0.1);
  color: rgba(10, 31, 68, 0.78);
}

.page-faq-item .data-table tr:last-child td {
  border-bottom: none;
}

/* ========== 链接 ========== */
.page-faq-link {
  color: var(--faq-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
  transition: color var(--ease), border-color var(--ease);
}

.page-faq-link:hover {
  color: var(--faq-accent);
  border-color: var(--faq-accent);
}

/* ========== CTA 底部 ========== */
.page-faq-cta {
  padding: 0 0 48px;
}

.page-faq-cta__inner {
  background: linear-gradient(120deg, #0A1F44 0%, rgba(255, 107, 53, 0.2) 60%, rgba(0, 229, 255, 0.08) 100%);
  border: 1px solid var(--faq-border-line);
  padding: 32px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}

.page-faq-cta__inner::after {
  content: "FAQ";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 100px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(245, 240, 230, 0.12);
  pointer-events: none;
  line-height: 1;
}

.page-faq-cta__kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--faq-accent);
}

.page-faq-cta__content {
  max-width: 640px;
  position: relative;
  z-index: 1;
}

.page-faq-cta__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--faq-text);
  margin: 0 0 8px;
}

.page-faq-cta__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-ice);
  margin: 0;
  font-family: var(--font-mono);
}

.page-faq-cta .btn--primary {
  position: relative;
  z-index: 1;
}

/* ========== 按钮样式补全 ========== */
.page-faq .btn--primary {
  background: var(--faq-accent);
  color: #fff;
  padding: 12px 24px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  border: none;
  cursor: pointer;
  transition: transform var(--ease), box-shadow var(--ease), opacity var(--ease);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-faq .btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(255, 107, 53, 0.4);
  opacity: 0.95;
}

.page-faq .btn--ghost {
  background: transparent;
  color: var(--faq-cyan);
  border: 1px solid var(--faq-cyan);
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), transform var(--ease);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.page-faq .btn--ghost:hover {
  background: rgba(0, 229, 255, 0.1);
  color: #fff;
  transform: translateY(-2px);
}

/* ========== 响应式：移动端优先已内置，桌面端增强 ========== */

@media (min-width: 768px) {
  .page-faq .breadcrumbs {
    padding-top: 28px;
  }

  .page-faq-hero {
    padding: 72px 0 72px;
  }

  .page-faq-item__answer--split {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-faq-image--step {
    max-width: 360px;
    justify-self: end;
  }

  .page-faq-image--icon {
    max-width: 200px;
    justify-self: center;
  }

  .page-faq-cta__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    padding: 40px 44px;
  }
}

@media (max-width: 1023px) {
  .page-faq-layout {
    flex-direction: column;
  }

  .page-faq-aside {
    width: 100%;
    flex-basis: auto;
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: stretch;
  }

  .page-faq-aside .panel {
    flex: 1 1 200px;
    min-width: 200px;
  }
}

@media (max-width: 640px) {
  .page-faq-hero__stats {
    gap: 16px;
  }

  .page-faq-hero__stat {
    padding-right: 16px;
  }

  .page-faq-hero__stat-num {
    font-size: 22px;
  }

  .page-faq-section {
    margin-bottom: 56px;
  }

  .page-faq-section__index {
    font-size: 30px;
    min-width: 44px;
  }

  .page-faq-section__title {
    font-size: 20px;
  }

  .page-faq-item__summary {
    padding: 16px 16px;
    flex-wrap: wrap;
    gap: 8px;
  }

  .page-faq-item__q {
    font-size: 15px;
    flex-basis: calc(100% - 44px);
  }

  .page-faq-item__tag {
    margin-left: auto;
  }

  .page-faq-item__answer {
    padding: 0 16px 20px;
  }

  .page-faq-item__answer--split {
    grid-template-columns: 1fr;
  }

  .page-faq-image--step,
  .page-faq-image--icon {
    max-width: 100%;
  }

  .page-faq-security-card {
    flex-direction: column;
  }

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

  .page-faq-cta__inner::after {
    font-size: 70px;
  }
}