.page-faq {
  background: var(--c-mist);
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  position: relative;
  background: var(--c-navy);
  color: var(--c-white);
  padding: 48px 0 56px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 44, 0.16) 0%, rgba(10, 20, 40, 0) 68%);
  top: -170px;
  right: -110px;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 44, 0.08) 0%, rgba(10, 20, 40, 0) 62%);
  bottom: -80px;
  left: -50px;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
}

.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 13px;
  color: rgba(245, 247, 250, 0.6);
  margin-bottom: 20px;
}

.page-faq .faq-breadcrumb a {
  color: var(--c-accent);
  text-decoration: none;
}

.page-faq .faq-breadcrumb a:hover {
  text-decoration: underline;
}

.page-faq .faq-breadcrumb__sep {
  color: rgba(245, 247, 250, 0.35);
}

.page-faq .faq-hero__tag {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--c-accent);
  border-color: rgba(255, 107, 44, 0.4);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(30px, 4.2vw, 44px);
  line-height: 1.18;
  margin: 0 0 16px;
  color: var(--c-white);
}

.page-faq .faq-hero__lead {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 247, 250, 0.72);
  max-width: 560px;
  margin: 0 0 28px;
}

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

.page-faq .faq-hero .pill-btn--ghost {
  border-color: rgba(245, 247, 250, 0.45);
  color: var(--c-white);
}

.page-faq .faq-hero .pill-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  background: var(--c-navy-2);
  border: 1px dashed rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-xl);
  padding: 12px;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: calc(var(--radius-xl) - 12px);
}

.page-faq .faq-hero__badge {
  position: absolute;
  bottom: 26px;
  left: 26px;
  background: var(--c-accent);
  color: var(--c-white);
  font-family: var(--font-number);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
}

/* ===== 热门问题 ===== */
.page-faq .faq-hot {
  padding: 64px 0 72px;
}

.page-faq .faq-section-head {
  max-width: 640px;
  margin-bottom: 32px;
}

.page-faq .faq-section-head h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 32px);
  color: var(--c-navy);
  margin: 12px 0 8px;
}

.page-faq .faq-section-head p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-gray);
}

.page-faq .faq-accordion {
  display: grid;
  gap: 14px;
}

.page-faq .faq-item {
  background: var(--c-white);
  border: 1px solid var(--c-silver);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 107, 44, 0.45);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-item summary {
  list-style: none;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
}

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

.page-faq .faq-item__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 107, 44, 0.12);
  color: var(--c-accent);
  font-family: var(--font-number);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.page-faq .faq-item[open] .faq-item__icon {
  background: var(--c-accent);
  color: var(--c-white);
}

.page-faq .faq-item__question {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-navy);
}

.page-faq .faq-item__toggle {
  position: relative;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--c-mist);
  transition: background 0.3s var(--ease);
}

.page-faq .faq-item__toggle::before,
.page-faq .faq-item__toggle::after {
  content: "";
  position: absolute;
  background: var(--c-accent);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.page-faq .faq-item__toggle::before {
  width: 14px;
  height: 2px;
  top: 13px;
  left: 7px;
}

.page-faq .faq-item__toggle::after {
  width: 2px;
  height: 14px;
  top: 7px;
  left: 13px;
}

.page-faq .faq-item[open] .faq-item__toggle {
  background: var(--c-accent);
}

.page-faq .faq-item[open] .faq-item__toggle::before {
  background: var(--c-white);
  transform: rotate(180deg);
}

.page-faq .faq-item[open] .faq-item__toggle::after {
  background: var(--c-white);
  opacity: 0;
  transform: scaleY(0);
}

.page-faq .faq-answer {
  padding: 0 20px 22px 82px;
  color: var(--c-gray);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-answer p {
  margin: 0;
}

.page-faq .faq-answer a {
  color: var(--c-accent);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 44, 0.3);
}

.page-faq .faq-answer a:hover {
  border-bottom-color: var(--c-accent);
}

/* ===== 导出问题排查 ===== */
.page-faq .faq-trouble {
  position: relative;
  background: var(--c-navy);
  color: var(--c-white);
  padding: 72px 0;
  overflow: hidden;
}

.page-faq .faq-trouble::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 44, 0.1) 0%, rgba(10, 20, 40, 0) 70%);
  pointer-events: none;
}

.page-faq .faq-trouble__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 48px;
}

.page-faq .faq-trouble .exh-tag {
  color: var(--c-accent);
  border-color: rgba(255, 107, 44, 0.45);
}

.page-faq .faq-trouble h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 32px);
  color: var(--c-white);
  margin: 12px 0 8px;
}

.page-faq .faq-trouble__lead {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.7);
  max-width: 520px;
  margin-bottom: 32px;
}

.page-faq .faq-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-faq .faq-step:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 107, 44, 0.35);
}

.page-faq .faq-step__num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 107, 44, 0.14);
  color: var(--c-accent);
  font-family: var(--font-number);
  font-weight: 700;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-faq .faq-step__body h3 {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
  margin: 2px 0 6px;
}

.page-faq .faq-step__body p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.72);
  margin: 0;
}

.page-faq .faq-trouble__figure {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

/* ===== 版本兼容 ===== */
.page-faq .faq-versions {
  padding: 64px 0 72px;
}

.page-faq .faq-versions h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 32px);
  color: var(--c-navy);
  margin: 12px 0 8px;
}

.page-faq .faq-versions__lead {
  color: var(--c-gray);
  font-size: 15px;
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: 32px;
}

.page-faq .faq-versions__grid {
  display: grid;
  gap: 20px;
}

.page-faq .faq-version-card {
  position: relative;
  background: var(--c-white);
  border: 1px solid var(--c-silver);
  border-radius: var(--radius-lg);
  padding: 24px;
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-faq .faq-version-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: var(--c-silver);
}

.page-faq .faq-version-card--current {
  border-color: rgba(255, 107, 44, 0.5);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-version-card--current::before {
  background: var(--c-accent);
}

.page-faq .faq-version-card__tag {
  display: inline-block;
  font-family: var(--font-number);
  font-size: 13px;
  font-weight: 700;
  background: var(--c-navy);
  color: var(--c-white);
  border-radius: var(--radius-pill);
  padding: 4px 14px;
}

.page-faq .faq-version-card--current .faq-version-card__tag {
  background: var(--c-accent);
}

.page-faq .faq-version-card__year {
  font-family: var(--font-number);
  font-size: 32px;
  font-weight: 700;
  color: var(--c-accent);
  margin: 16px 0 6px;
}

.page-faq .faq-version-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-gray);
  margin: 0;
}

/* ===== 联系支持 ===== */
.page-faq .faq-contact {
  padding: 0 0 80px;
}

.page-faq .faq-contact__card {
  position: relative;
  background: var(--c-white);
  border: 1px solid var(--c-silver);
  border-radius: var(--radius-xl);
  padding: 40px 28px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-faq .faq-contact__card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 44, 0.08) 0%, rgba(245, 247, 250, 0) 70%);
  pointer-events: none;
}

.page-faq .faq-contact h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 32px);
  color: var(--c-navy);
  margin: 12px 0 8px;
}

.page-faq .faq-contact__intro {
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-gray);
  max-width: 520px;
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 14px;
  margin: 28px 0;
}

.page-faq .faq-contact__item {
  display: grid;
  gap: 4px;
  padding: 18px 20px;
  background: var(--c-mist);
  border-radius: var(--radius-lg);
}

.page-faq .faq-contact__label {
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-gray);
  text-transform: uppercase;
}

.page-faq .faq-contact__value {
  font-family: var(--font-number);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-navy);
  word-break: break-all;
}

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

/* ===== 响应式 ===== */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 80px 0 100px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 64px;
  }

  .page-faq .faq-hero__figure {
    margin: 0;
  }

  .page-faq .faq-hot {
    padding: 88px 0 96px;
  }

  .page-faq .faq-accordion {
    gap: 16px;
  }

  .page-faq .faq-item summary {
    padding: 22px 26px;
  }

  .page-faq .faq-answer {
    padding: 0 26px 24px 92px;
    font-size: 15px;
  }

  .page-faq .faq-trouble {
    padding: 96px 0;
  }

  .page-faq .faq-trouble__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: 64px;
  }

  .page-faq .faq-step {
    padding: 20px 22px;
  }

  .page-faq .faq-versions {
    padding: 88px 0 96px;
  }

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

  .page-faq .faq-contact {
    padding: 0 0 100px;
  }

  .page-faq .faq-contact__card {
    padding: 56px 64px;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-step,
  .page-faq .faq-version-card,
  .page-faq .faq-contact__card {
    transition: none;
  }
}