/* ===== 页面 faq 专属样式 ===== */
.page-faq {
  --faq-gold: #D4AF37;
  --faq-gold-light: #F9E79F;
  --faq-gold-dark: #B8962A;
  --faq-blue: #1A237E;
  --faq-blue-light: #283593;
  --faq-accent: #FF6F00;
  --faq-bg-dark: #0D1B2A;
  --faq-bg-light: #F5F5F5;
  --faq-text: #212121;
  --faq-text-secondary: #757575;
  --faq-text-on-dark: #FFFFFF;
  --faq-border: #B0BEC5;
  --faq-white: #FFFFFF;
  --faq-font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --faq-font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'Georgia', serif;
  --faq-border-width: 6px;
  --faq-radius: 16px;
  --faq-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  --faq-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.35);
  --faq-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 滚动进度条 */
.page-faq .faq-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 4px;
  background: linear-gradient(90deg, var(--faq-gold), var(--faq-accent));
  z-index: 999;
  transition: width 0.1s linear;
  pointer-events: none;
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1.5rem 0 0.5rem;
  font-family: var(--faq-font-sans);
  font-size: 0.875rem;
  color: var(--faq-text-secondary);
}

.page-faq .breadcrumb a {
  color: var(--faq-gold-dark);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--faq-transition);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--faq-gold);
  text-decoration: underline;
}

.page-faq .breadcrumb-sep {
  color: var(--faq-border);
  font-weight: 300;
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--faq-text);
  font-weight: 700;
}

/* Hero 区域 */
.page-faq .faq-hero {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.page-faq .faq-hero__image-wrap {
  border-radius: var(--faq-radius);
  overflow: hidden;
  border: var(--faq-border-width) solid var(--faq-blue);
  box-shadow: var(--faq-shadow);
  background: var(--faq-bg-dark);
}

.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 800 / 200;
}

.page-faq .faq-hero__content {
  background: var(--faq-blue);
  border-radius: var(--faq-radius);
  padding: 2rem 1.5rem;
  border: var(--faq-border-width) solid var(--faq-gold-dark);
  box-shadow: var(--faq-shadow);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq .faq-hero__title {
  font-family: var(--faq-font-sans);
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--faq-gold);
  margin: 0;
  line-height: 1.15;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.page-faq .faq-hero__subtitle {
  font-family: var(--faq-font-serif);
  font-size: 1.125rem;
  color: var(--faq-text-on-dark);
  margin: 0;
  opacity: 0.9;
  line-height: 1.5;
}

/* 搜索框 */
.page-faq .faq-search {
  position: relative;
  margin-top: 0.5rem;
}

.page-faq .faq-search__input {
  display: block;
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 3rem;
  font-family: var(--faq-font-sans);
  font-size: 1rem;
  color: var(--faq-text);
  background: var(--faq-white);
  border: 3px solid var(--faq-gold);
  border-radius: 12px;
  outline: none;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
  box-sizing: border-box;
}

.page-faq .faq-search__input::placeholder {
  color: var(--faq-text-secondary);
  opacity: 0.8;
}

.page-faq .faq-search__input:focus {
  border-color: var(--faq-accent);
  box-shadow: 0 0 0 3px rgba(255, 111, 0, 0.25);
}

.page-faq .faq-search__icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--faq-gold-dark);
  pointer-events: none;
  line-height: 1;
}

/* 章节容器 */
.page-faq .faq-sections {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

/* 每个章节卡片 */
.page-faq .faq-section {
  background: var(--faq-white);
  border: var(--faq-border-width) solid var(--faq-blue);
  border-radius: var(--faq-radius);
  box-shadow: var(--faq-shadow);
  overflow: hidden;
  transition: box-shadow var(--faq-transition);
}

.page-faq .faq-section:hover {
  box-shadow: var(--faq-shadow-hover);
}

/* 章节头部 */
.page-faq .faq-section__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 1.5rem 1rem;
  border-bottom: 2px solid var(--faq-border);
  background: linear-gradient(135deg, rgba(26, 35, 126, 0.04), rgba(212, 175, 55, 0.06));
}

.page-faq .faq-section .section-number {
  font-family: var(--faq-font-sans);
  font-size: 3rem;
  font-weight: 900;
  color: var(--faq-gold);
  line-height: 1;
  flex-shrink: 0;
  letter-spacing: -0.02em;
  opacity: 0.85;
  min-width: 3rem;
}

.page-faq .faq-section__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  flex-shrink: 0;
  object-fit: cover;
  border: 2px solid var(--faq-gold-light);
  background: var(--faq-bg-dark);
}

.page-faq .faq-section__title {
  font-family: var(--faq-font-sans);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--faq-blue);
  margin: 0;
  line-height: 1.3;
}

/* 问答项目容器 */
.page-faq .faq-section__items {
  padding: 0.5rem 1.5rem 1.25rem;
}

/* 单个问答项 */
.page-faq .accordion-item {
  border-bottom: 1px solid var(--faq-border);
}

.page-faq .accordion-item:last-child {
  border-bottom: none;
}

/* 触发器 */
.page-faq .accordion-trigger {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  width: 100%;
  padding: 1.125rem 0.5rem;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--faq-font-sans);
  font-size: 1rem;
  color: var(--faq-text);
  transition: background var(--faq-transition), color var(--faq-transition);
  border-radius: 8px;
  position: relative;
}

.page-faq .accordion-trigger:hover,
.page-faq .accordion-trigger:focus-visible {
  background: linear-gradient(90deg, rgba(212, 175, 55, 0.08), transparent);
  color: var(--faq-blue);
  outline: none;
}

.page-faq .accordion-trigger:focus-visible {
  outline: 3px solid var(--faq-accent);
  outline-offset: 2px;
}

/* 金色圆点编号 */
.page-faq .accordion-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--faq-gold), var(--faq-gold-dark));
  color: var(--faq-white);
  font-family: var(--faq-font-sans);
  font-size: 0.875rem;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(212, 175, 55, 0.35);
  transition: transform var(--faq-transition);
  line-height: 1;
}

.page-faq .accordion-trigger:hover .accordion-number {
  transform: scale(1.08);
}

/* 问题文字 */
.page-faq .accordion-question {
  flex: 1;
  font-weight: 600;
  line-height: 1.4;
  padding-right: 0.5rem;
}

/* 展开图标 */
.page-faq .accordion-icon {
  flex-shrink: 0;
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--faq-gold-dark);
  transition: transform var(--faq-transition), color var(--faq-transition);
  line-height: 1;
  width: 1.5rem;
  text-align: center;
}

.page-faq .accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(45deg);
  color: var(--faq-accent);
}

/* 面板 */
.page-faq .accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
  padding: 0 0.5rem;
}

.page-faq .accordion-trigger[aria-expanded="true"] + .accordion-panel {
  max-height: 600px;
  padding: 0 0.5rem 1.25rem;
}

/* 答案内容 */
.page-faq .accordion-answer {
  background: #FFFDF5;
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  border-left: 4px solid var(--faq-gold);
  font-family: var(--faq-font-serif);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--faq-text);
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.04);
}

.page-faq .accordion-answer p {
  margin: 0 0 0.75rem;
}

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

.page-faq .accordion-answer a {
  color: var(--faq-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--faq-transition);
}

.page-faq .accordion-answer a:hover,
.page-faq .accordion-answer a:focus-visible {
  color: var(--faq-gold-dark);
}

/* 答案中的列表 */
.page-faq .contact-list {
  margin: 0.75rem 0;
  padding-left: 1.25rem;
  list-style: none;
}

.page-faq .contact-list li {
  position: relative;
  padding: 0.35rem 0;
  font-family: var(--faq-font-serif);
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-faq .contact-list li::before {
  content: "•";
  color: var(--faq-gold);
  font-weight: 700;
  position: absolute;
  left: -1rem;
}

/* 进度指示器 */
.page-faq .answer-progress {
  margin-top: 1rem;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--faq-gold-light), var(--faq-gold), var(--faq-gold-dark));
  border-radius: 2px;
  opacity: 0.7;
  position: relative;
}

.page-faq .answer-progress::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 30%;
  background: var(--faq-bg-light);
  border-radius: 2px;
}

/* 底部CTA */
.page-faq .faq-cta {
  background: var(--faq-bg-dark);
  border-radius: var(--faq-radius);
  padding: 1.75rem 2rem;
  border: var(--faq-border-width) solid var(--faq-gold-dark);
  box-shadow: var(--faq-shadow);
  text-align: center;
  margin-bottom: 2rem;
}

.page-faq .faq-cta__text {
  font-family: var(--faq-font-sans);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--faq-text-on-dark);
  margin: 0;
  line-height: 1.5;
}

.page-faq .faq-cta a {
  color: var(--faq-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 700;
  transition: color var(--faq-transition);
}

.page-faq .faq-cta a:hover,
.page-faq .faq-cta a:focus-visible {
  color: var(--faq-accent);
}

/* 隐藏搜索结果的交互状态（配合JS） */
.page-faq .accordion-item[data-hidden="true"] {
  display: none;
}

/* 辅助类 */
.page-faq .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ===== 响应式 ===== */
/* 移动端优先：基础样式已适配窄屏 */
/* 平板及以上 */
@media (min-width: 640px) {
  .page-faq .faq-hero__content {
    padding: 2.5rem 2.5rem;
  }

  .page-faq .faq-hero__title {
    font-size: 2.75rem;
  }

  .page-faq .faq-hero__subtitle {
    font-size: 1.25rem;
  }

  .page-faq .faq-section .section-number {
    font-size: 3.5rem;
    min-width: 3.5rem;
  }

  .page-faq .faq-section__title {
    font-size: 1.65rem;
  }

  .page-faq .faq-section__header {
    padding: 1.75rem 2rem 1.25rem;
  }

  .page-faq .faq-section__items {
    padding: 0.75rem 2rem 1.5rem;
  }

  .page-faq .accordion-trigger {
    padding: 1.25rem 0.75rem;
    font-size: 1.05rem;
  }

  .page-faq .accordion-panel {
    padding: 0 0.75rem;
  }

  .page-faq .accordion-trigger[aria-expanded="true"] + .accordion-panel {
    padding: 0 0.75rem 1.5rem;
  }
}

/* 桌面 */
@media (min-width: 960px) {
  .page-faq .faq-hero {
    flex-direction: row;
    align-items: stretch;
    gap: 2rem;
  }

  .page-faq .faq-hero__image-wrap {
    flex: 0 0 42%;
    max-width: 42%;
  }

  .page-faq .faq-hero__img {
    height: 100%;
    aspect-ratio: auto;
    object-fit: cover;
  }

  .page-faq .faq-hero__content {
    flex: 1;
    justify-content: center;
    padding: 2.5rem 3rem;
  }

  .page-faq .faq-hero__title {
    font-size: 3rem;
  }

  .page-faq .breadcrumb {
    padding: 2rem 0 0.75rem;
  }

  .page-faq .faq-sections {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  /* 最后两个section合并占一行？使用flex让最后一个单独一行更好 */
  .page-faq .faq-section:nth-child(5) {
    grid-column: 1 / -1;
    max-width: 66%;
    justify-self: center;
    width: 100%;
  }

  .page-faq .faq-section .section-number {
    font-size: 4rem;
    min-width: 4rem;
  }

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

  .page-faq .faq-cta {
    padding: 2rem 3rem;
  }

  .page-faq .faq-cta__text {
    font-size: 1.25rem;
  }
}

/* 大屏优化 */
@media (min-width: 1280px) {
  .page-faq .faq-hero__image-wrap {
    flex: 0 0 38%;
    max-width: 38%;
  }

  .page-faq .faq-sections {
    gap: 2.5rem;
  }

  .page-faq .faq-section:nth-child(5) {
    max-width: 60%;
  }
}