/* ============================================================
   page-faq – 支持中心专属样式
   作用域限定 .page-faq，移动端优先
   ============================================================ */
.page-faq {
  --faq-icon-size: 48px;
  --faq-card-radius: var(--radius-md, 10px);
  --faq-card-padding: 1.25rem 1rem;
  --faq-hero-gap: 2rem;
}

/* ---------- 首屏英雄区 ---------- */
.page-faq .faq-hero {
  padding: 3rem 0 2rem;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero__inner {
  display: flex;
  flex-direction: column;
  gap: var(--faq-hero-gap);
  align-items: flex-start;
}

.page-faq .faq-hero__text {
  flex: 1 1 100%;
  order: 1;
}

.page-faq .faq-hero__overline {
  color: var(--accent-orange, #E67E22);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.5rem;
  display: inline-block;
  border-left: 3px solid var(--accent-orange, #E67E22);
  padding-left: 0.75rem;
}

.page-faq .faq-hero__title {
  margin: 0 0 0.75rem;
  color: var(--text-primary, #fff);
  font-size: 2.2rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__subtitle {
  color: var(--text-secondary, #B0B0B0);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0 0 1.5rem;
  max-width: 560px;
}

/* 搜索框 */
.page-faq .faq-hero__search {
  position: relative;
  max-width: 420px;
  width: 100%;
  margin-bottom: 1.5rem;
}

.page-faq .faq-hero__search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted, #707070);
  pointer-events: none;
  width: 18px;
  height: 18px;
}

.page-faq .faq-hero__search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.6rem;
  background: var(--bg-card, #2C2C2C);
  border: 1px solid var(--border-subtle, #404040);
  border-radius: var(--radius-sm, 6px);
  color: var(--text-primary, #fff);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast, 0.2s);
}

.page-faq .faq-hero__search-input::placeholder {
  color: var(--text-muted, #707070);
}

.page-faq .faq-hero__search-input:focus {
  border-color: var(--main-green, #2ECC71);
}

/* 分类锚点标签 */
.page-faq .faq-hero__anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-faq .faq-hero__anchor {
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast, 0.2s), transform var(--transition-fast, 0.2s);
  text-decoration: none;
  color: var(--text-primary, #fff);
  background: var(--bg-card, #2C2C2C);
  border: 1px solid var(--border-subtle, #404040);
}

.page-faq .faq-hero__anchor:hover,
.page-faq .faq-hero__anchor:focus-visible {
  background: var(--main-green-dim, #1e994d);
  border-color: var(--main-green, #2ECC71);
  transform: translateY(-1px);
}

.page-faq .faq-hero__anchor.tag--orange {
  border-color: var(--accent-orange-dim, #b8631a);
}

.page-faq .faq-hero__anchor.tag--orange:hover {
  background: var(--accent-orange-dim, #b8631a);
  border-color: var(--accent-orange, #E67E22);
}

.page-faq .faq-hero__anchor.tag--blue {
  border-color: var(--accent-blue-dim, #1f5f87);
}

.page-faq .faq-hero__anchor.tag--blue:hover {
  background: var(--accent-blue-dim, #1f5f87);
  border-color: var(--accent-blue, #2980B9);
}

/* 首屏视觉图 */
.page-faq .faq-hero__visual {
  flex: 0 0 auto;
  order: 0;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  border-radius: var(--radius-lg, 16px);
  opacity: 0.85;
}

/* ---------- FAQ 分类章节 ---------- */
.page-faq .faq-section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-subtle, #404040);
}

.page-faq .faq-section:first-of-type {
  border-top: none;
  padding-top: 0.5rem;
}

.page-faq .faq-section__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-faq .faq-section__icon-wrapper {
  flex: 0 0 var(--faq-icon-size);
  width: var(--faq-icon-size);
  height: var(--faq-icon-size);
  border-radius: var(--radius-sm, 6px);
  overflow: hidden;
  background: var(--bg-card, #2C2C2C);
  border: 1px solid var(--border-subtle, #404040);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.page-faq .faq-section__title {
  margin: 0;
  font-size: 1.5rem;
  color: var(--text-primary, #fff);
  letter-spacing: -0.01em;
}

.page-faq .faq-section__count {
  margin-left: auto;
  font-family: var(--font-data, monospace);
  font-size: 0.85rem;
  color: var(--text-muted, #707070);
  background: var(--bg-card, #2C2C2C);
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  border: 1px solid var(--border-subtle, #404040);
  white-space: nowrap;
}

/* ---------- 单个 FAQ 卡片 (details) ---------- */
.page-faq .faq-section__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq .faq-card {
  background: var(--bg-card, #2C2C2C);
  border: 1px solid var(--border-subtle, #404040);
  border-radius: var(--faq-card-radius);
  overflow: hidden;
  transition: box-shadow var(--transition-med, 0.35s), border-color var(--transition-med, 0.35s);
}

.page-faq .faq-card[open] {
  border-color: var(--main-green, #2ECC71);
  box-shadow: 0 0 0 1px var(--main-green, #2ECC71), var(--shadow-sm, 0 2px 8px rgba(0,0,0,0.3));
}

.page-faq .faq-card__summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: var(--faq-card-padding);
  cursor: pointer;
  list-style: none;
  user-select: none;
  -webkit-user-select: none;
  transition: background var(--transition-fast, 0.2s);
}

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

.page-faq .faq-card__summary:hover,
.page-faq .faq-card__summary:focus-visible {
  background: var(--bg-card-hover, #363636);
}

.page-faq .faq-card__question {
  flex: 1;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary, #fff);
  line-height: 1.4;
}

.page-faq .faq-card__chevron {
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  color: var(--text-secondary, #B0B0B0);
  transition: transform var(--transition-med, 0.35s);
}

.page-faq .faq-card[open] .faq-card__chevron {
  transform: rotate(180deg);
  color: var(--main-green, #2ECC71);
}

.page-faq .faq-card__body {
  padding: 0 1rem 1.25rem;
  color: var(--text-secondary, #B0B0B0);
  font-size: 0.95rem;
  line-height: 1.7;
  border-top: 1px solid var(--border-subtle, #404040);
  margin: 0 1rem 0;
  padding-left: 0;
  padding-right: 0;
}

.page-faq .faq-card__body p {
  margin: 0.6rem 0;
}

.page-faq .faq-card__body p:first-child {
  margin-top: 0;
}

.page-faq .faq-card__link {
  color: var(--accent-blue, #2980B9);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast, 0.2s);
}

.page-faq .faq-card__link:hover,
.page-faq .faq-card__link:focus-visible {
  color: var(--main-green, #2ECC71);
}

/* ---------- 底部联系提示条 ---------- */
.page-faq .faq-cta {
  padding: 2.5rem 0 4rem;
}

.page-faq .faq-cta__inner {
  background: var(--bg-card, #2C2C2C);
  border: 1px solid var(--border-subtle, #404040);
  border-radius: var(--radius-md, 10px);
  padding: 1.75rem 1.5rem;
  text-align: center;
}

.page-faq .faq-cta__text {
  margin: 0;
  color: var(--text-secondary, #B0B0B0);
  font-size: 1rem;
  line-height: 1.7;
}

.page-faq .faq-cta__link {
  color: var(--accent-orange, #E67E22);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast, 0.2s);
}

.page-faq .faq-cta__link:hover {
  color: var(--main-green, #2ECC71);
}

/* ============================================================
   桌面端 >= 768px
   ============================================================ */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 4rem 0 3rem;
  }

  .page-faq .faq-hero__inner {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }

  .page-faq .faq-hero__text {
    flex: 1 1 55%;
    order: 0;
  }

  .page-faq .faq-hero__visual {
    flex: 0 0 40%;
    order: 1;
    max-width: 400px;
    margin: 0;
  }

  .page-faq .faq-hero__title {
    font-size: 2.8rem;
  }

  .page-faq .faq-hero__subtitle {
    font-size: 1.1rem;
  }

  .page-faq .faq-section {
    padding: 3.5rem 0;
  }

  .page-faq .faq-section__title {
    font-size: 1.75rem;
  }

  .page-faq .faq-card__summary {
    padding: 1.25rem 1.5rem;
  }

  .page-faq .faq-card__body {
    padding: 0 1.5rem 1.5rem;
    margin: 0 1.5rem 0;
  }

  .page-faq .faq-cta {
    padding: 3rem 0 5rem;
  }

  .page-faq .faq-cta__inner {
    padding: 2rem 2.5rem;
  }
}

/* ============================================================
   宽桌面 >= 1024px
   ============================================================ */
@media (min-width: 1024px) {
  .page-faq .faq-hero__title {
    font-size: 3.2rem;
  }

  .page-faq .faq-hero__visual {
    flex: 0 0 45%;
    max-width: 480px;
  }

  .page-faq .faq-section__list {
    max-width: 820px;
  }

  .page-faq .faq-card__question {
    font-size: 1.05rem;
  }
}

/* ============================================================
   极窄屏安全守卫（防止溢出）
   ============================================================ */
@media (max-width: 420px) {
  .page-faq .faq-hero__title {
    font-size: 1.8rem;
  }

  .page-faq .faq-section__header {
    flex-wrap: wrap;
  }

  .page-faq .faq-section__count {
    margin-left: 0;
    margin-top: 0.25rem;
  }

  .page-faq .faq-card__summary {
    padding: 1rem 0.75rem;
  }

  .page-faq .faq-card__body {
    padding: 0 0.75rem 1rem;
    margin: 0 0.75rem 0;
  }

  .page-faq .faq-cta__inner {
    padding: 1.25rem 1rem;
  }
}