/* ==================== page-faq 页面专属样式 ==================== */
.page-faq {
  --faq-sidebar-width: 220px;
  --faq-hero-bg-start: #0A5C36;
  --faq-hero-bg-end: #0D1B1A;
  --faq-gold-line: #C9A84C;
  --faq-divider-color: rgba(201,168,76,0.25);
  --faq-item-border: #E8E8E8;
  --faq-item-radius: 6px;

  font-family: var(--font-body);
  color: var(--color-text-dark);
  background: var(--color-secondary-white);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg) 0;
  font-size: var(--font-size-index);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-secondary-mid-gray);
}

.page-faq .breadcrumb__item {
  display: inline;
}

.page-faq .breadcrumb__link {
  color: var(--color-primary-gold);
  text-decoration: none;
  transition: color var(--transition-base);
}

.page-faq .breadcrumb__link:hover {
  color: var(--color-accent-gold-light);
}

.page-faq .breadcrumb__sep {
  margin: 0 var(--spacing-xs);
  color: var(--color-secondary-mid-gray);
}

.page-faq .breadcrumb__text {
  color: var(--color-text-dark);
  font-weight: 500;
}

/* ---------- Hero 标题区 ---------- */
.page-faq .faq-hero {
  background: linear-gradient(135deg, var(--faq-hero-bg-start) 0%, var(--faq-hero-bg-end) 100%);
  padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 300px;
  height: 300px;
  border: 1px solid var(--faq-gold-line);
  border-radius: 50%;
  opacity: 0.08;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--faq-gold-line), transparent 80%);
  pointer-events: none;
}

.page-faq .faq-hero .container {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
}

.page-faq .faq-hero__text {
  flex: 1;
}

.page-faq .faq-hero__title {
  font-family: var(--font-headings);
  font-size: var(--font-size-h1);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-secondary-white);
  margin: 0 0 var(--spacing-xs);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__sub {
  font-size: var(--font-size-body);
  color: var(--color-text-on-dark);
  opacity: 0.8;
  margin: 0;
  max-width: 480px;
  line-height: 1.5;
}

.page-faq .faq-hero__icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: var(--shadow-glow-gold);
}

/* ---------- 搜索框 ---------- */
.page-faq .faq-search {
  max-width: 520px;
  margin-top: var(--spacing-lg);
  position: relative;
}

.page-faq .faq-search__icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-secondary-mid-gray);
  pointer-events: none;
  transition: color var(--transition-base);
}

.page-faq .faq-search__input {
  display: block;
  width: 100%;
  padding: 12px 16px 12px 44px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--color-secondary-white);
  border: 1px solid var(--faq-item-border);
  border-radius: 40px;
  outline: none;
  color: var(--color-text-dark);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  box-sizing: border-box;
}

.page-faq .faq-search__input::placeholder {
  color: var(--color-secondary-mid-gray);
  opacity: 0.7;
}

.page-faq .faq-search__input:focus {
  border-color: var(--faq-gold-line);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.15);
}

.page-faq .faq-search__input:focus ~ .faq-search__icon {
  color: var(--faq-gold-line);
}

/* ---------- 主内容两栏 ---------- */
.page-faq .faq-main {
  padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-xxl);
  background: var(--color-secondary-light-gray);
}

.page-faq .faq-main .container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ---------- 标签页容器 ---------- */
.page-faq .faq-tabs {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  position: relative;
}

/* radio 隐藏 */
.page-faq .faq-tabs__radio {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* ---------- 左侧目录（移动端水平滚动） ---------- */
.page-faq .faq-sidebar {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--spacing-sm);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--faq-gold-line) transparent;
  padding-bottom: var(--spacing-xs);
}

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

.page-faq .faq-sidebar::-webkit-scrollbar-thumb {
  background: var(--faq-gold-line);
  border-radius: 4px;
}

.page-faq .faq-sidebar__item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 10px 18px;
  font-family: var(--font-body);
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--color-text-dark);
  background: var(--color-secondary-white);
  border: 1px solid transparent;
  border-radius: 30px;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  user-select: none;
}

.page-faq .faq-sidebar__item:hover {
  border-color: var(--faq-gold-line);
  color: var(--color-primary-dark-green);
}

.page-faq .faq-sidebar__num {
  font-family: var(--font-data);
  font-size: 0.7rem;
  color: var(--faq-gold-line);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-faq .faq-sidebar__label {
  font-weight: 500;
}

/* 高亮当前选中的目录项 */
#faq-tab-data:checked ~ .faq-sidebar .faq-sidebar__item[for="faq-tab-data"],
#faq-tab-legacy:checked ~ .faq-sidebar .faq-sidebar__item[for="faq-tab-legacy"],
#faq-tab-support:checked ~ .faq-sidebar .faq-sidebar__item[for="faq-tab-support"] {
  background: var(--color-primary-dark-green);
  color: var(--color-secondary-white);
  border-color: var(--color-primary-dark-green);
  box-shadow: var(--shadow-md);
}

#faq-tab-data:checked ~ .faq-sidebar .faq-sidebar__item[for="faq-tab-data"] .faq-sidebar__num,
#faq-tab-legacy:checked ~ .faq-sidebar .faq-sidebar__item[for="faq-tab-legacy"] .faq-sidebar__num,
#faq-tab-support:checked ~ .faq-sidebar .faq-sidebar__item[for="faq-tab-support"] .faq-sidebar__num {
  color: var(--faq-gold-line);
}

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

/* 默认隐藏所有面板，通过 radio 控制显示 */
.page-faq .faq-tab-panel {
  display: none;
  animation: faq-fade-in 0.35s ease both;
}

@keyframes faq-fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

#faq-tab-data:checked ~ .faq-content #faq-panel-data,
#faq-tab-legacy:checked ~ .faq-content #faq-panel-legacy,
#faq-tab-support:checked ~ .faq-content #faq-panel-support {
  display: block;
}

.page-faq .faq-panel__title {
  font-family: var(--font-headings);
  font-size: var(--font-size-h2);
  font-weight: 700;
  color: var(--color-primary-dark-green);
  margin: 0 0 var(--spacing-xs);
  line-height: 1.2;
  position: relative;
  display: inline-block;
}

.page-faq .faq-panel__title::after {
  content: '';
  display: block;
  width: 60%;
  height: 3px;
  background: var(--faq-gold-line);
  margin-top: var(--spacing-xs);
  border-radius: 2px;
}

.page-faq .faq-panel__intro {
  font-size: var(--font-size-small);
  color: var(--color-secondary-mid-gray);
  margin: 0 0 var(--spacing-lg);
  max-width: 560px;
  line-height: 1.5;
}

/* ---------- 折叠面板（手风琴） ---------- */
.page-faq .faq-item {
  display: block;
  background: var(--color-secondary-white);
  border: 1px solid var(--faq-item-border);
  border-radius: var(--faq-item-radius);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
  overflow: hidden;
}

.page-faq .faq-item:hover {
  border-color: var(--faq-gold-line);
  box-shadow: var(--shadow-md);
}

.page-faq .faq-item[open] {
  border-color: var(--faq-gold-line);
  box-shadow: var(--shadow-md);
}

.page-faq .faq-item__question {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-dark);
  padding: 16px 20px 16px 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  line-height: 1.4;
  user-select: none;
  list-style: none;
  position: relative;
  transition: color var(--transition-base);
}

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

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

/* 自定义展开箭头（金色） */
.page-faq .faq-item__question::after {
  content: '+';
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--faq-gold-line);
  line-height: 1;
  flex-shrink: 0;
  transition: transform var(--transition-base), color var(--transition-base);
}

.page-faq .faq-item[open] .faq-item__question::after {
  content: '−';
  transform: rotate(0deg);
}

.page-faq .faq-item__question:hover {
  color: var(--color-primary-dark-green);
}

.page-faq .faq-item__question:hover::after {
  color: var(--color-accent-gold-light);
}

.page-faq .faq-item__answer {
  padding: 0 20px 18px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-dark);
  border-top: 1px solid var(--faq-divider-color);
  margin-top: 0;
}

.page-faq .faq-item__answer p {
  margin: 14px 0 0;
}

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

.page-faq .faq-item__link {
  color: var(--color-primary-gold);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-base);
  font-weight: 500;
}

.page-faq .faq-item__link:hover {
  color: var(--color-accent-gold-light);
}

/* ---------- 旧版帮助区图片 ---------- */
.page-faq .faq-legacy-img {
  display: block;
  max-width: 100%;
  height: auto;
  margin-top: var(--spacing-lg);
  border-radius: var(--faq-item-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--faq-item-border);
}

/* ---------- 反馈联系卡片 ---------- */
.page-faq .faq-contact-card {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--color-primary-dark-green);
  border-radius: var(--faq-item-radius);
  color: var(--color-text-on-dark);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-md);
}

.page-faq .faq-contact-card__tag {
  font-family: var(--font-data);
  font-size: var(--font-size-index);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--faq-gold-line);
  background: rgba(201,168,76,0.12);
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid rgba(201,168,76,0.3);
}

.page-faq .faq-contact-card__email,
.page-faq .faq-contact-card__phone {
  font-family: var(--font-data);
  font-size: var(--font-size-small);
  color: var(--color-secondary-white);
  opacity: 0.9;
}

.page-faq .faq-contact-card__link {
  margin-left: auto;
  font-size: var(--font-size-index);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.page-faq .faq-contact-card .btn--ghost {
  color: var(--faq-gold-line);
  border: 1px solid var(--faq-gold-line);
  background: transparent;
  padding: 6px 16px;
  border-radius: 30px;
  text-decoration: none;
  transition: all var(--transition-base);
}

.page-faq .faq-contact-card .btn--ghost:hover {
  background: var(--faq-gold-line);
  color: var(--color-primary-dark-green);
}

/* ---------- 响应式：平板及以上 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: var(--spacing-xxl) var(--spacing-lg) var(--spacing-xl);
  }

  .page-faq .faq-hero__title {
    font-size: clamp(2.6rem, 4.5vw, 3.6rem);
  }

  .page-faq .faq-hero__icon {
    width: 120px;
    height: 120px;
  }

  .page-faq .faq-tabs {
    flex-direction: row;
    gap: var(--spacing-xl);
  }

  .page-faq .faq-sidebar {
    flex-direction: column;
    gap: var(--spacing-sm);
    width: var(--faq-sidebar-width);
    flex-shrink: 0;
    overflow-x: visible;
    padding-bottom: 0;
    background: var(--color-secondary-white);
    border-radius: var(--faq-item-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    align-self: flex-start;
    position: sticky;
    top: calc(var(--header-height, 60px) + var(--spacing-lg));
  }

  .page-faq .faq-sidebar__item {
    padding: 12px 18px;
    border-radius: var(--faq-item-radius);
    background: transparent;
    box-shadow: none;
    border: 1px solid transparent;
    font-size: 0.95rem;
  }

  .page-faq .faq-sidebar__item:hover {
    background: rgba(10,92,54,0.04);
    border-color: var(--faq-divider-color);
  }

  #faq-tab-data:checked ~ .faq-sidebar .faq-sidebar__item[for="faq-tab-data"],
  #faq-tab-legacy:checked ~ .faq-sidebar .faq-sidebar__item[for="faq-tab-legacy"],
  #faq-tab-support:checked ~ .faq-sidebar .faq-sidebar__item[for="faq-tab-support"] {
    background: var(--color-primary-dark-green);
    color: var(--color-secondary-white);
    border-color: var(--color-primary-dark-green);
    box-shadow: var(--shadow-sm);
  }

  .page-faq .faq-panel__title {
    font-size: var(--font-size-h2);
  }

  .page-faq .faq-item__question {
    font-size: 1.05rem;
    padding: 18px 24px;
  }

  .page-faq .faq-item__answer {
    padding: 0 24px 20px;
    font-size: 1rem;
  }

  .page-faq .faq-legacy-img {
    margin-top: var(--spacing-xl);
  }

  .page-faq .faq-contact-card {
    padding: var(--spacing-xl);
    gap: var(--spacing-lg);
  }
}

/* ---------- 桌面端微调 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-sidebar {
    width: 240px;
    padding: var(--spacing-lg);
  }

  .page-faq .faq-sidebar__item {
    font-size: 1rem;
  }

  .page-faq .faq-content {
    max-width: 780px;
  }
}

/* ---------- 移动端窄屏适配 ---------- */
@media (max-width: 480px) {
  .page-faq .breadcrumb {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
    font-size: 0.65rem;
  }

  .page-faq .faq-hero {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .page-faq .faq-hero__grid {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-faq .faq-hero__icon {
    width: 72px;
    height: 72px;
    align-self: flex-end;
    margin-top: -40px;
  }

  .page-faq .faq-hero__title {
    font-size: var(--font-size-h2);
  }

  .page-faq .faq-search__input {
    font-size: 0.9rem;
    padding: 10px 14px 10px 40px;
  }

  .page-faq .faq-main {
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-xl);
  }

  .page-faq .faq-item__question {
    font-size: 0.95rem;
    padding: 14px 16px;
  }

  .page-faq .faq-item__answer {
    font-size: 0.9rem;
    padding: 0 16px 14px;
  }

  .page-faq .faq-contact-card {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .page-faq .faq-contact-card__link {
    margin-left: 0;
    margin-top: var(--spacing-xs);
  }

  .page-faq .faq-panel__title {
    font-size: var(--font-size-h3);
  }
}

/* ---------- 确保大屏内容区宽度自然 ---------- */
@media (min-width: 1400px) {
  .page-faq .faq-content {
    max-width: 820px;
  }
}