.page-faq {
  --faq-hero-speed: rgba(245, 239, 226, 0.05);
  --faq-card-bg: #fffdf7;
  --faq-card-border: #e3dac7;
  --faq-dark-line: rgba(245, 239, 226, 0.16);
  background: var(--color-cream);
}

@media (prefers-reduced-motion: no-preference) {
  .page-faq {
    scroll-behavior: smooth;
  }
}

/* ===== 首屏：帮助中心标题区 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-dark);
  color: var(--color-paper);
  padding: 48px 0 72px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), 0 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-55deg, transparent 0 16px, var(--faq-hero-speed) 16px 32px);
  pointer-events: none;
}

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

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  color: var(--color-gold);
}

.page-faq .breadcrumbs a {
  color: var(--color-paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--speed), border-color var(--speed);
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--color-gold);
  border-color: var(--color-gold);
}

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

.page-faq .faq-hero__crumb-sep {
  color: rgba(255, 248, 240, 0.4);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--color-gold);
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-faq .faq-hero__eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--color-gold);
}

.page-faq .faq-hero h1 {
  max-width: 720px;
  margin: 0 0 18px;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(2.1rem, 6vw, 4rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--color-paper);
}

.page-faq .faq-hero__lead {
  max-width: 560px;
  margin: 0 0 28px;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: rgba(255, 248, 240, 0.76);
}

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

.page-faq .faq-hero__aside {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border: 1px solid var(--faq-dark-line);
  background: linear-gradient(140deg, rgba(201, 161, 55, 0.16), transparent 60%);
}

.page-faq .faq-hero__index {
  font-family: var(--font-headline);
  font-size: 2.25rem;
  line-height: 1;
  color: var(--color-gold);
}

.page-faq .faq-hero__aside-label {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 248, 240, 0.6);
}

/* ===== 登录步骤区 ===== */
.page-faq .faq-steps {
  background: var(--color-cream);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-faq .faq-steps__frame {
  position: relative;
  margin-top: var(--space-4);
}

.page-faq .faq-steps__frame::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 16px;
  width: 44px;
  background: linear-gradient(to left, var(--color-cream), transparent);
  pointer-events: none;
}

.page-faq .faq-steps__track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 4px 4px 16px;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--color-gold) transparent;
}

.page-faq .faq-steps__track::-webkit-scrollbar {
  height: 6px;
}

.page-faq .faq-steps__track::-webkit-scrollbar-thumb {
  background: var(--color-gold);
}

.page-faq .faq-steps__track::-webkit-scrollbar-track {
  background: transparent;
}

.page-faq .faq-step-card {
  flex: 0 0 min(82vw, 300px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  min-height: 320px;
  padding: 22px 20px 18px;
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-card-border);
  border-top: 5px solid var(--color-gold);
  transition: border-color var(--speed), box-shadow var(--speed), transform var(--speed);
}

.page-faq .faq-step-card:hover,
.page-faq .faq-step-card:focus-within {
  border-top-color: var(--color-primary);
  border-left-color: var(--color-gold);
  box-shadow: 8px 8px 0 rgba(163, 18, 14, 0.08);
  transform: translateY(-2px);
}

.page-faq .faq-step-card--scan {
  border-top-color: var(--color-primary);
}

.page-faq .faq-step-card__icon {
  position: relative;
  width: 64px;
  height: 64px;
  margin-bottom: 18px;
}

.page-faq .faq-step-card__num {
  position: absolute;
  top: -22px;
  left: -12px;
  z-index: 0;
  font-family: var(--font-headline);
  font-size: 2.875rem;
  line-height: 1;
  color: rgba(163, 18, 14, 0.14);
}

.page-faq .faq-step-card__icon svg {
  position: relative;
  z-index: 1;
  margin-top: 14px;
  width: 54px;
  height: 54px;
  color: var(--color-primary);
}

.page-faq .faq-step-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-headline);
  font-size: 1.25rem;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--color-dark);
}

.page-faq .faq-step-card p {
  margin: 0 0 16px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-gray);
}

.page-faq .faq-step-card .disclose {
  margin-top: auto;
}

.page-faq .faq-step-card .disclose__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 0 4px;
  border-top: 1px solid var(--color-line);
  cursor: pointer;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  color: var(--color-primary);
}

.page-faq .faq-step-card .disclose__mark {
  transition: transform var(--speed);
}

.page-faq .faq-step-card .disclose[open] .disclose__mark {
  transform: rotate(45deg);
}

.page-faq .faq-step-card .disclose__body {
  padding: 12px 0 4px;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-gray);
}

.page-faq .faq-step-card .disclose__body img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto 12px;
  border: 1px solid var(--color-line);
}

/* ===== 常见问题区 ===== */
.page-faq .faq-qa {
  background: var(--color-dark);
  color: var(--color-paper);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-faq .faq-qa__layout {
  display: grid;
  gap: 40px;
}

.page-faq .faq-qa__sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-faq .faq-qa__sidebar .section-head__sub {
  color: rgba(255, 248, 240, 0.6);
}

.page-faq .faq-qa__toc {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid rgba(201, 161, 55, 0.5);
}

.page-faq .faq-qa__toc li {
  margin: 0;
}

.page-faq .faq-qa__toc a {
  display: block;
  padding: 10px 16px;
  font-size: 0.9375rem;
  color: rgba(255, 248, 240, 0.72);
  text-decoration: none;
  transition: color var(--speed), background var(--speed);
}

.page-faq .faq-qa__toc a::before {
  content: "›";
  margin-right: 8px;
  color: var(--color-gold);
}

.page-faq .faq-qa__toc a:hover,
.page-faq .faq-qa__toc a:focus-visible {
  color: var(--color-paper);
  background: rgba(201, 161, 55, 0.1);
}

.page-faq .faq-qa__contact {
  align-self: flex-start;
}

.page-faq .faq-qa__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-qa__item {
  border: 1px solid var(--faq-dark-line);
  background: rgba(255, 248, 240, 0.035);
  transition: border-color var(--speed), background var(--speed);
}

.page-faq .faq-qa__item[open] {
  border-color: rgba(201, 161, 55, 0.6);
  background: rgba(255, 248, 240, 0.05);
}

.page-faq .faq-qa__item .disclose__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 20px;
  cursor: pointer;
  color: var(--color-paper);
}

.page-faq .faq-qa__item .disclose__num {
  flex-shrink: 0;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  color: var(--color-gold);
}

.page-faq .faq-qa__item .disclose__title {
  flex: 1;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.5;
}

.page-faq .faq-qa__item .disclose__mark {
  flex-shrink: 0;
  font-family: var(--font-data);
  font-size: 1.125rem;
  color: var(--color-orange);
  transition: transform var(--speed);
}

.page-faq .faq-qa__item[open] .disclose__mark {
  transform: rotate(45deg);
}

.page-faq .faq-qa__item .disclose__body {
  margin-left: 20px;
  padding: 0 20px 20px;
  border-left: 2px solid var(--color-primary);
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(255, 248, 240, 0.78);
}

.page-faq .faq-qa__item .disclose__body a {
  color: var(--color-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-qa__item .disclose__body a:hover {
  color: var(--color-green);
}

/* ===== 账号安全区 ===== */
.page-faq .faq-security {
  background: var(--color-paper);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-faq .faq-security__layout {
  display: grid;
  gap: 32px;
}

.page-faq .faq-security__media {
  position: relative;
  padding: 12px;
  background: var(--color-cream);
  border: 1px solid var(--color-line);
}

.page-faq .faq-security__media::after {
  content: "";
  position: absolute;
  right: -10px;
  bottom: -10px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-gold);
  z-index: 0;
  pointer-events: none;
}

.page-faq .faq-security__media img {
  display: block;
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
}

.page-faq .faq-security__content h2 {
  margin: 16px 0 14px;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  line-height: 1.15;
  color: var(--color-dark);
}

.page-faq .faq-security__content > p {
  margin: 0 0 18px;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-gray);
}

.page-faq .faq-security__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-security__list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-gray);
}

.page-faq .faq-security__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 10px;
  height: 10px;
  background: var(--color-gold);
}

.page-faq .faq-security__note {
  padding-top: 16px;
  border-top: 1px solid var(--color-line);
  font-family: var(--font-data);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-primary);
}

/* ===== 更多帮助区 ===== */
.page-faq .faq-more {
  background: var(--color-cream);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-faq .faq-more__grid {
  display: grid;
  gap: 20px;
  margin-top: var(--space-4);
}

.page-faq .faq-more__card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 24px;
  text-decoration: none;
  background: #fbf7ef;
  border: 1px solid var(--color-line);
  transition: box-shadow var(--speed), transform var(--speed), border-color var(--speed);
}

.page-faq .faq-more__card:hover,
.page-faq .faq-more__card:focus-visible {
  border-color: var(--color-gold);
  box-shadow: 8px 8px 0 rgba(201, 161, 55, 0.2);
  transform: translateY(-3px);
}

.page-faq .faq-more__letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-dark);
  color: var(--color-gold);
  font-family: var(--font-headline);
  font-size: 1.5rem;
  line-height: 1;
}

.page-faq .faq-more__card h3 {
  margin: 8px 0 0;
  font-family: var(--font-headline);
  font-size: 1.375rem;
  line-height: 1.2;
  color: var(--color-dark);
}

.page-faq .faq-more__card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-gray);
}

.page-faq .faq-more__card .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ===== 响应式增强 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 64px 0 80px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 240px;
    align-items: stretch;
    gap: 32px;
  }

  .page-faq .faq-hero h1 {
    font-size: clamp(2.4rem, 5vw, 4rem);
  }

  .page-faq .faq-hero__aside {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 24px;
    min-height: 180px;
  }

  .page-faq .faq-hero__index {
    font-size: clamp(3.5rem, 8vw, 6rem);
  }

  .page-faq .faq-steps__frame::after {
    display: none;
  }

  .page-faq .faq-steps__track {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 20px;
    overflow: visible;
    padding: 0;
    scroll-snap-type: none;
  }

  .page-faq .faq-step-card {
    flex: initial;
    min-width: 0;
  }

  .page-faq .faq-step-card__num {
    font-size: 3.25rem;
  }

  .page-faq .faq-security__layout {
    grid-template-columns: minmax(0, 440px) minmax(0, 1fr);
    align-items: center;
    gap: 56px;
  }

  .page-faq .faq-more__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-qa__layout {
    grid-template-columns: minmax(0, 380px) minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-qa__sidebar {
    position: sticky;
    top: calc(var(--header-height) + 32px);
    align-self: start;
  }
}