/* ===== 页面专属: .page-faq ===== */
.page-faq {
  --faq-hero-bg: var(--color-bg-dark);
  --faq-card-radius: 18px;
  --faq-header-clip: polygon(0 0, 100% 0, 97% 100%, 0% 100%);
  --faq-transition: var(--transition-base);
  --faq-shadow: 0 8px 32px rgba(10,15,30,0.10);
  --faq-shadow-hover: 0 16px 48px rgba(10,15,30,0.16);
  --faq-organic-blob: #1A2A4A;
  background: var(--color-bg-light);
  color: var(--color-primary);
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--faq-hero-bg);
  padding: 3rem 0 2.5rem;
  overflow: hidden;
}
.page-faq .faq-hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,142,178,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,142,178,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.page-faq .faq-hero__layout {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
}
.page-faq .faq-hero__text {
  flex: 1 1 280px;
}
.page-faq .faq-hero .breadcrumb {
  padding: 0;
  margin-bottom: 1rem;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}
.page-faq .faq-hero .breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-faq .faq-hero .breadcrumb a:hover,
.page-faq .faq-hero .breadcrumb a:focus-visible {
  color: var(--color-accent);
}
.page-faq .faq-hero .breadcrumb .sep {
  margin: 0 0.4rem;
  color: var(--color-text-secondary);
}
.page-faq .faq-hero__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 3.2rem);
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin: 0 0 0.5rem;
  line-height: 1.1;
}
.page-faq .faq-hero__desc {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 0 1.5rem;
  line-height: 1.5;
}
.page-faq .faq-hero__visual {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}
.page-faq .faq-hero__icon {
  display: block;
  width: 100px;
  height: 100px;
  object-fit: contain;
  border-radius: 50%;
  background: rgba(255,127,42,0.10);
  padding: 0.6rem;
  box-shadow: 0 0 0 1px rgba(255,127,42,0.20);
}

/* ---------- 搜索框 ---------- */
.page-faq .faq-search {
  position: relative;
  max-width: 480px;
}
.page-faq .faq-search__icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  pointer-events: none;
}
.page-faq .faq-search__input {
  display: block;
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 3rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-primary);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(108,142,178,0.25);
  border-radius: 60px;
  outline: none;
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  backdrop-filter: blur(4px);
}
.page-faq .faq-search__input::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.7;
}
.page-faq .faq-search__input:focus {
  background: rgba(255,255,255,0.10);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255,127,42,0.15);
}

/* ---------- Breadcrumb (inside hero) ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
}
.page-faq .breadcrumb [aria-current="page"] {
  color: var(--color-accent);
  font-weight: 600;
}

/* ---------- FAQ Grid ---------- */
.page-faq .faq-grid {
  padding: 3rem 0 2rem;
}
.page-faq .faq-grid__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

/* ---------- 单张卡片 ---------- */
.page-faq .faq-card {
  background: var(--color-surface);
  border-radius: var(--faq-card-radius);
  box-shadow: var(--faq-shadow);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.page-faq .faq-card:hover {
  box-shadow: var(--faq-shadow-hover);
  transform: translateY(-2px);
}

/* 卡片头部 —— 斜切 + 有机色块 */
.page-faq .faq-card__header {
  background: var(--color-primary);
  clip-path: var(--faq-header-clip);
  padding: 1.25rem 1.8rem 1.1rem 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  margin-bottom: 0.4rem;
}
.page-faq .faq-card__header::after {
  content: '';
  position: absolute;
  right: 1.8rem;
  bottom: -8px;
  width: 48px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 4px;
  opacity: 0.6;
}
.page-faq .faq-card__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
  margin: 0;
  line-height: 1.2;
}
.page-faq .faq-card__num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2.6rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.35;
  user-select: none;
  transition: opacity var(--transition-fast);
}
.page-faq .faq-card:hover .faq-card__num {
  opacity: 0.55;
}

/* 卡片主体 */
.page-faq .faq-card__body {
  padding: 1.4rem 1.8rem 1.8rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.page-faq .faq-card__body--aside {
  flex-direction: column;
}
.page-faq .faq-card__body-main {
  flex: 1;
}

/* 卡片内图片 */
.page-faq .faq-card__image {
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-bg-light);
}
.page-faq .faq-card__image img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-card__image--aside img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}

/* ---------- 问答列表 (手风琴) ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.page-faq .faq-item {
  border-bottom: 1px solid rgba(11,29,58,0.06);
  padding-bottom: 0.4rem;
}
.page-faq .faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.page-faq .faq-item details {
  display: block;
}
.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--color-primary);
  padding: 0.5rem 0;
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-fast);
  position: relative;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::before {
  content: '+';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-accent);
  background: rgba(255,127,42,0.08);
  border-radius: 50%;
  flex-shrink: 0;
  transition: transform var(--transition-fast), background var(--transition-fast);
  line-height: 1;
}
.page-faq .faq-item details[open] summary::before {
  content: '−';
  background: rgba(255,127,42,0.18);
  transform: rotate(180deg);
}
.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--color-accent);
}
.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 4px;
}
.page-faq .faq-answer {
  padding: 0.3rem 0 0.6rem 2.2rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-primary);
  opacity: 0.85;
}
.page-faq .faq-answer p {
  margin: 0;
}
.page-faq .faq-answer a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}
.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  color: var(--color-accent-hover);
}
.page-faq .faq-item details[open] .faq-answer {
  animation: faqFadeIn 0.3s ease forwards;
}
@keyframes faqFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 0.85; transform: translateY(0); }
}

/* ---------- 联系区域 ---------- */
.page-faq .faq-contact {
  padding: 2.5rem 0 4rem;
}
.page-faq .faq-contact__inner {
  background: var(--color-surface);
  border-radius: var(--faq-card-radius);
  box-shadow: var(--faq-shadow);
  padding: 2.5rem 2rem;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-contact__inner::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(255,127,42,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.page-faq .faq-contact__inner::after {
  content: '';
  position: absolute;
  bottom: -30px;
  left: -30px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(11,29,58,0.04) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.page-faq .faq-contact .section__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.6rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--color-primary);
  margin: 0 0 0.5rem;
}
.page-faq .faq-contact__desc {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-primary);
  opacity: 0.7;
  margin: 0 0 1.5rem;
}
.page-faq .faq-contact__info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem 1.8rem;
  margin-bottom: 1.8rem;
}
.page-faq .faq-contact__item {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--color-primary);
  opacity: 0.8;
  background: var(--color-bg-light);
  padding: 0.35rem 1rem;
  border-radius: 40px;
}
.page-faq .faq-contact .btn--primary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--color-accent);
  color: var(--color-surface);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  padding: 0.7rem 2rem;
  border-radius: 60px;
  transition: background var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
}
.page-faq .faq-contact .btn--primary:hover,
.page-faq .faq-contact .btn--primary:focus-visible {
  background: var(--color-accent-hover);
  transform: scale(1.02);
}
.page-faq .faq-contact .btn--primary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
}

/* ===== 桌面端 ≥768px ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 4rem 0 3.5rem;
  }
  .page-faq .faq-hero__layout {
    flex-wrap: nowrap;
    gap: 3rem;
  }
  .page-faq .faq-hero__text {
    flex: 1 1 60%;
  }
  .page-faq .faq-hero__title {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
  }
  .page-faq .faq-hero__desc {
    font-size: 1.1rem;
  }
  .page-faq .faq-grid {
    padding: 4rem 0 2.5rem;
  }
  .page-faq .faq-grid__cards {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .page-faq .faq-card__header {
    padding: 1.4rem 2.2rem 1.2rem 2.2rem;
  }
  .page-faq .faq-card__title {
    font-size: 1.25rem;
  }
  .page-faq .faq-card__num {
    font-size: 3rem;
  }
  .page-faq .faq-card__body {
    padding: 1.6rem 2.2rem 2rem;
    gap: 1.6rem;
  }
  .page-faq .faq-card__body--aside {
    flex-direction: row;
    align-items: flex-start;
  }
  .page-faq .faq-card__body--aside .faq-card__body-main {
    flex: 1;
  }
  .page-faq .faq-card__image--aside {
    flex: 0 0 240px;
    margin-left: 1.2rem;
  }
  .page-faq .faq-card__image--aside img {
    width: 100%;
    height: auto;
  }
  .page-faq .faq-item summary {
    font-size: 1rem;
  }
  .page-faq .faq-answer {
    font-size: 0.95rem;
  }
  .page-faq .faq-contact {
    padding: 3rem 0 5rem;
  }
  .page-faq .faq-contact__inner {
    padding: 3rem 3rem;
  }
  .page-faq .faq-contact .section__title {
    font-size: 1.8rem;
  }
}

/* ===== 大桌面端 ≥1024px ===== */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 5rem 0 4rem;
  }
  .page-faq .faq-hero__title {
    font-size: 3.8rem;
  }
  .page-faq .faq-hero__desc {
    font-size: 1.15rem;
    max-width: 560px;
  }
  .page-faq .faq-grid__cards {
    gap: 2.4rem;
  }
  .page-faq .faq-card__header {
    padding: 1.6rem 2.5rem 1.3rem 2.5rem;
  }
  .page-faq .faq-card__body {
    padding: 1.8rem 2.5rem 2.2rem;
  }
  .page-faq .faq-card__image--aside {
    flex-basis: 280px;
  }
}