/* ===== 支持中心 FAQ 页面专属样式 ===== */
.page-faq {
  display: block;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 1rem 1rem 3rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  color: var(--color-text, #0B1A2C);
  background: var(--color-white, #FFFFFF);
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  font-family: var(--font-accent, 'Space Mono', monospace);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-text-light, #555);
  margin-bottom: 1.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-light, #F0F0F0);
}

.page-faq .breadcrumb a {
  color: var(--color-accent, #D4AF37);
  text-decoration: none;
  transition: color 0.2s;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--color-green, #39FF14);
  outline: none;
}

.page-faq .breadcrumb__sep {
  color: var(--color-text-light, #555);
  font-size: 0.65rem;
}

/* 标题区 */
.page-faq .faq-hero {
  margin-bottom: 2.5rem;
  padding: 1.5rem 0 1rem;
  position: relative;
}

.page-faq .faq-hero__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--color-primary, #0B1A2C);
  margin: 0 0 0.3rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.page-faq .faq-hero__subtitle {
  font-family: var(--font-accent, 'Space Mono', monospace);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--color-text-light, #555);
  margin: 0 0 1rem;
  letter-spacing: 0.08em;
}

.page-faq .faq-hero .gold-line {
  height: 3px;
  width: 60px;
  background: var(--color-accent, #D4AF37);
  border: none;
  margin-top: 0.8rem;
}

/* ===== 布局容器 ===== */
.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* ===== 左侧索引（移动端横向，桌面纵向） ===== */
.page-faq .faq-index {
  flex-shrink: 0;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent, #D4AF37) var(--color-light, #F0F0F0);
}

.page-faq .faq-index::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-index::-webkit-scrollbar-track {
  background: var(--color-light, #F0F0F0);
  border-radius: 2px;
}

.page-faq .faq-index::-webkit-scrollbar-thumb {
  background: var(--color-accent, #D4AF37);
  border-radius: 2px;
}

.page-faq .faq-index__inner {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  min-width: min-content;
  padding: 0 0 0.5rem;
  border-bottom: 2px solid var(--color-light, #F0F0F0);
}

.page-faq .faq-index__label {
  flex-shrink: 0;
  font-family: var(--font-accent, 'Space Mono', monospace);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent, #D4AF37);
  border: 1px solid var(--color-accent, #D4AF37);
  padding: 0.2rem 0.5rem;
  white-space: nowrap;
}

.page-faq .faq-index__list {
  display: flex;
  gap: 0.2rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-shrink: 0;
}

.page-faq .faq-index__item {
  flex-shrink: 0;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text-light, #555);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius, 4px);
  transition: all 0.2s ease;
  background: transparent;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--color-primary, #0B1A2C);
  background: var(--color-light, #F0F0F0);
  border-color: var(--color-accent, #D4AF37);
  outline: none;
}

.page-faq .faq-index__link:focus-visible {
  box-shadow: 0 0 0 2px var(--color-green, #39FF14);
}

.page-faq .faq-index__num {
  font-family: var(--font-accent, 'Space Mono', monospace);
  font-weight: 700;
  font-size: 0.7rem;
  color: var(--color-accent, #D4AF37);
  min-width: 1.5em;
}

.page-faq .faq-index__contact {
  display: none;
  flex-shrink: 0;
  margin-left: auto;
  padding-left: 0.8rem;
  border-left: 1px solid var(--color-light, #F0F0F0);
}

.page-faq .faq-index__contact-label {
  display: block;
  font-size: 0.7rem;
  color: var(--color-text-light, #555);
  margin-bottom: 0.3rem;
  white-space: nowrap;
}

/* ===== 右侧内容区 ===== */
.page-faq .faq-content {
  flex: 1;
  min-width: 0;
}

/* ===== 分区 ===== */
.page-faq .faq-section {
  margin-bottom: 3rem;
  scroll-margin-top: 2rem;
}

.page-faq .faq-section__header {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin-bottom: 0.5rem;
}

.page-faq .faq-section .section-number {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 800;
  font-size: 2.8rem;
  color: var(--color-accent, #D4AF37);
  line-height: 1;
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.page-faq .faq-section__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--color-primary, #0B1A2C);
  margin: 0;
  line-height: 1.2;
}

.page-faq .faq-section__desc {
  font-size: 0.9rem;
  color: var(--color-text-light, #555);
  margin: 0 0 1.5rem 0;
  padding-left: 0;
  line-height: 1.5;
}

/* ===== FAQ 折叠项 ===== */
.page-faq .faq-item {
  display: block;
  margin-bottom: 0.6rem;
  border: 1px solid var(--color-light, #F0F0F0);
  border-radius: var(--radius, 4px);
  background: var(--color-white, #FFFFFF);
  transition: border-color 0.2s, box-shadow 0.2s;
  overflow: hidden;
}

.page-faq .faq-item:hover {
  border-color: var(--color-accent, #D4AF37);
  box-shadow: var(--shadow-stack, 0 4px 20px rgba(0,0,0,0.06));
}

.page-faq .faq-item[open] {
  border-color: var(--color-green, #39FF14);
  box-shadow: 0 0 0 1px var(--color-green, #39FF14), var(--shadow-stack, 0 4px 20px rgba(0,0,0,0.08));
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1rem 1rem 0.75rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-primary, #0B1A2C);
  line-height: 1.4;
  user-select: none;
  transition: background 0.2s;
}

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

.page-faq .faq-item__summary::marker {
  content: '';
  display: none;
}

.page-faq .faq-item__summary:hover {
  background: var(--color-light, #F0F0F0);
}

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--color-green, #39FF14);
  outline-offset: -2px;
  background: var(--color-light, #F0F0F0);
}

.page-faq .faq-item__icon {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 2px;
  flex-shrink: 0;
  background: var(--color-light, #F0F0F0);
  transition: transform 0.2s, box-shadow 0.2s;
}

.page-faq .faq-item[open] .faq-item__icon {
  box-shadow: 0 0 0 2px var(--color-green, #39FF14);
  transform: scale(1.02);
}

.page-faq .faq-item__question {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-item__indicator {
  flex-shrink: 0;
  width: 1.2rem;
  height: 1.2rem;
  position: relative;
  transition: transform 0.3s ease;
}

.page-faq .faq-item__indicator::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.6rem;
  height: 0.6rem;
  border-right: 2px solid var(--color-accent, #D4AF37);
  border-bottom: 2px solid var(--color-accent, #D4AF37);
  transform: translate(-50%, -70%) rotate(45deg);
  transition: transform 0.3s ease, border-color 0.3s;
}

.page-faq .faq-item[open] .faq-item__indicator::before {
  transform: translate(-50%, -30%) rotate(-135deg);
  border-color: var(--color-green, #39FF14);
}

/* 答案区 */
.page-faq .faq-item__answer {
  padding: 0 1rem 1.2rem 3.4rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-text, #0B1A2C);
  background: var(--color-white, #FFFFFF);
  border-top: 1px solid var(--color-light, #F0F0F0);
}

.page-faq .faq-item__answer p {
  margin: 0 0 0.8rem;
}

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

.page-faq .faq-item__screenshot {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--color-light, #F0F0F0);
  border-radius: var(--radius, 4px);
  margin-top: 0.8rem;
  display: block;
  object-fit: cover;
  transition: box-shadow 0.2s;
}

.page-faq .faq-item__screenshot:hover {
  box-shadow: var(--shadow-stack, 0 4px 20px rgba(0,0,0,0.1));
}

/* ===== 帮助区域 ===== */
.page-faq .faq-help {
  margin-top: 2rem;
  padding: 2rem 0;
  text-align: center;
}

.page-faq .faq-help .gold-line {
  height: 2px;
  width: 40px;
  background: var(--color-accent, #D4AF37);
  margin: 0 auto 1.2rem;
  border: none;
}

.page-faq .faq-help__text {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--color-primary, #0B1A2C);
  margin: 0 0 1rem;
}

.page-faq .faq-help .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.4rem;
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  border-radius: var(--radius, 4px);
  transition: all 0.2s;
  border: 2px solid transparent;
}

.page-faq .faq-help .btn--primary {
  background: var(--color-primary, #0B1A2C);
  color: var(--color-white, #FFFFFF);
  border-color: var(--color-primary, #0B1A2C);
}

.page-faq .faq-help .btn--primary:hover,
.page-faq .faq-help .btn--primary:focus-visible {
  background: var(--color-accent, #D4AF37);
  border-color: var(--color-accent, #D4AF37);
  color: var(--color-primary, #0B1A2C);
  outline: none;
}

.page-faq .faq-help .btn--primary:focus-visible {
  box-shadow: 0 0 0 3px var(--color-green, #39FF14);
}

/* ===== 桌面端样式 ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: 2rem 2rem 4rem;
  }

  .page-faq .faq-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 2.5rem;
  }

  .page-faq .faq-index {
    width: 220px;
    flex-shrink: 0;
    overflow: visible;
    position: sticky;
    top: calc(var(--nav-height, 64px) + 1.5rem);
    align-self: flex-start;
  }

  .page-faq .faq-index__inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0.4rem;
    min-width: auto;
    padding: 0;
    border-bottom: none;
    background: var(--color-light, #F0F0F0);
    padding: 0.8rem;
    border-radius: var(--radius, 4px);
  }

  .page-faq .faq-index__label {
    margin-bottom: 0.3rem;
    align-self: flex-start;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0.2rem;
  }

  .page-faq .faq-index__link {
    padding: 0.5rem 0.7rem;
    font-size: 0.8rem;
  }

  .page-faq .faq-index__contact {
    display: block;
    margin-top: 0.8rem;
    padding-top: 0.8rem;
    border-left: none;
    border-top: 1px solid var(--color-white, #FFFFFF);
  }

  .page-faq .faq-section__header {
    gap: 1rem;
  }

  .page-faq .faq-section .section-number {
    font-size: 3.2rem;
  }

  .page-faq .faq-section__title {
    font-size: 1.8rem;
  }

  .page-faq .faq-section__desc {
    padding-left: 0;
    font-size: 0.95rem;
  }

  .page-faq .faq-item__summary {
    padding: 1rem 1rem 1rem 0.75rem;
    font-size: 1rem;
  }

  .page-faq .faq-item__answer {
    padding: 0 1.5rem 1.5rem 3.8rem;
    font-size: 0.92rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-index {
    width: 250px;
  }

  .page-faq .faq-index__inner {
    padding: 1rem;
  }

  .page-faq .faq-index__link {
    font-size: 0.85rem;
    padding: 0.6rem 0.8rem;
  }
}

/* ===== 打印样式 ===== */
@media print {
  .page-faq {
    padding: 0.5in;
    max-width: 100%;
  }
  .page-faq .faq-index {
    display: none;
  }
  .page-faq .faq-item[open] .faq-item__answer {
    display: block !important;
  }
  .page-faq .faq-item__indicator {
    display: none;
  }
  .page-faq .faq-help .btn {
    display: none;
  }
}