/* ========================================
   page-faq 专属样式
   作用域限定：.page-faq
   ======================================== */
.page-faq {
  --faq-gap: 24px;
  --faq-section-gap: 56px;
  --faq-radius: 16px;
  --faq-card-bg: var(--clr-card-bg, #0F1E32);
  --faq-surface: var(--clr-surface, #132540);
  --faq-border: var(--clr-border, #2C3E50);
  --faq-text: var(--clr-text, #FFFFFF);
  --faq-text-sec: var(--clr-text-sec, #B0C4DE);
  --faq-accent: var(--clr-accent, #FF6B35);
  --faq-accent-v: var(--clr-accent-v, #FF8C5A);
  --faq-mono: var(--font-mono, 'JetBrains Mono', monospace);
  --faq-body: var(--font-body, 'Noto Sans SC', sans-serif);
  --faq-head: var(--font-head, 'Inter', sans-serif);
  --faq-space-lg: var(--space-lg, 24px);
  --faq-space-xl: var(--space-xl, 48px);
  --faq-space-2xl: var(--space-2xl, 72px);
  --faq-transition: var(--transition, 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94));
  --faq-max-width: 880px;

  display: flex;
  flex-direction: column;
  gap: var(--faq-section-gap);
  padding: 32px 16px 56px;
  max-width: var(--faq-max-width);
  margin: 0 auto;
  color: var(--faq-text);
  font-family: var(--faq-body);
  line-height: 1.6;
}

/* ---------- 面包屑 ---------- */
.faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--faq-text-sec);
  font-family: var(--faq-mono);
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}
.faq-breadcrumb a {
  color: var(--faq-text-sec);
  text-decoration: none;
  transition: color var(--faq-transition);
}
.faq-breadcrumb a:hover,
.faq-breadcrumb a:focus-visible {
  color: var(--faq-accent);
}
.breadcrumb-sep {
  color: var(--faq-border);
  user-select: none;
}

/* ---------- 顶部氛围区 ---------- */
.faq-hero {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 0 0 8px;
}
.faq-hero-title {
  font-family: var(--faq-head);
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0;
  color: var(--faq-text);
}
.faq-hero-desc {
  font-size: 1.05rem;
  color: var(--faq-text-sec);
  max-width: 600px;
  margin: 0;
  line-height: 1.5;
}
.faq-search-wrap {
  position: relative;
  max-width: 520px;
  width: 100%;
  margin-top: 8px;
}
.faq-search-input {
  display: block;
  width: 100%;
  padding: 14px 48px 14px 20px;
  font-size: 1rem;
  font-family: var(--faq-body);
  color: var(--faq-text);
  background: var(--faq-card-bg);
  border: 1.5px solid var(--faq-border);
  border-radius: 60px;
  outline: none;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
  -webkit-appearance: none;
  appearance: none;
}
.faq-search-input::placeholder {
  color: var(--faq-text-sec);
  opacity: 0.7;
}
.faq-search-input:focus {
  border-color: var(--faq-accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.18);
}
.faq-search-icon {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--faq-text-sec);
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}
.faq-hero-image {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--faq-radius);
  margin-top: 12px;
  background: var(--faq-surface);
}

/* ---------- 面板标签 ---------- */
.page-faq .panel-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--faq-accent);
  color: #fff;
  padding: 2px 16px;
  border-radius: 60px;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  line-height: 1.6;
  width: fit-content;
  margin-bottom: 8px;
  font-family: var(--faq-mono);
}

/* ---------- 各章节 ---------- */
.faq-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-section-title {
  font-family: var(--faq-head);
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--faq-text);
}
.faq-section-desc {
  font-size: 0.98rem;
  color: var(--faq-text-sec);
  margin: 0 0 4px;
  max-width: 600px;
  line-height: 1.5;
}
.faq-section-footer {
  margin-top: 8px;
}
.faq-more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--faq-mono);
  font-size: 0.9rem;
  color: var(--faq-accent);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 1.5px solid transparent;
  transition: border-color var(--faq-transition), color var(--faq-transition);
}
.faq-more-link:hover,
.faq-more-link:focus-visible {
  border-bottom-color: var(--faq-accent);
  color: var(--faq-accent-v);
}

/* ---------- 手风琴列表 ---------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ---------- 单个问答项 ---------- */
.faq-item {
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  overflow: hidden;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
}
.faq-item:hover {
  border-color: var(--faq-accent);
}
.faq-item[open] {
  border-color: var(--faq-accent);
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.08);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  font-family: var(--faq-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--faq-text);
  transition: background var(--faq-transition);
}
.faq-question::-webkit-details-marker {
  display: none;
}
.faq-question:hover {
  background: rgba(255, 255, 255, 0.03);
}
.faq-q-mono {
  flex-shrink: 0;
  font-family: var(--faq-mono);
  font-size: 0.85rem;
  color: var(--faq-accent);
  letter-spacing: 0.04em;
  background: rgba(255, 107, 53, 0.10);
  padding: 2px 10px;
  border-radius: 40px;
  line-height: 1.5;
}
.faq-q-text {
  flex: 1;
  min-width: 0;
}
.faq-q-arrow {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  color: var(--faq-text-sec);
  transition: transform var(--faq-transition), color var(--faq-transition);
}
.faq-item[open] .faq-q-arrow {
  transform: rotate(180deg);
  color: var(--faq-accent);
}

.faq-answer {
  padding: 0 20px 20px;
  font-size: 0.95rem;
  color: var(--faq-text-sec);
  line-height: 1.7;
  border-top: 1px solid transparent;
  animation: faqAnswerFadeIn 0.35s ease-out;
}
.faq-item[open] .faq-answer {
  border-top-color: var(--faq-border);
}
.faq-answer p {
  margin: 12px 0 0;
}
.faq-answer p:first-child {
  margin-top: 0;
}

/* 带图片的答案 */
.faq-answer-with-img {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-answer-text {
  flex: 1;
  min-width: 0;
}
.faq-answer-img {
  width: 100%;
  max-width: 300px;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
  background: var(--faq-surface);
  border: 1px solid var(--faq-border);
  align-self: flex-start;
}

/* 联系列表 */
.faq-contact-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.faq-contact-list li {
  padding: 6px 0 6px 16px;
  border-left: 3px solid var(--faq-accent);
  font-size: 0.93rem;
  color: var(--faq-text-sec);
}
.faq-contact-list li strong {
  color: var(--faq-text);
  font-weight: 600;
}

/* 展开动画 */
@keyframes faqAnswerFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 信任横幅 ---------- */
.faq-trust {
  margin-top: 8px;
  padding: 16px 20px;
  background: var(--faq-surface);
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--faq-text-sec);
  line-height: 1.5;
}
.faq-trust .trust-marker {
  flex-shrink: 0;
  color: var(--faq-accent);
  font-size: 1rem;
  line-height: 1.4;
}
.faq-trust .trust-text {
  flex: 1;
  min-width: 0;
}

/* ---------- 滚动显现 ---------- */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.page-faq [data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: translateY(0);
    transition: none;
  }
  .faq-answer {
    animation: none;
  }
  .faq-q-arrow {
    transition: none;
  }
}

/* ---------- 桌面端 (≥768px) ---------- */
@media (min-width: 768px) {
  .page-faq {
    padding: 48px 32px 72px;
    gap: var(--faq-space-2xl);
  }
  .faq-hero {
    gap: 20px;
  }
  .faq-hero-image {
    border-radius: 24px;
  }
  .faq-question {
    padding: 18px 24px;
    font-size: 1.05rem;
  }
  .faq-answer {
    padding: 0 24px 24px;
    font-size: 0.98rem;
  }
  .faq-answer-with-img {
    flex-direction: row;
    align-items: flex-start;
    gap: 24px;
  }
  .faq-answer-img {
    max-width: 240px;
    flex-shrink: 0;
  }
  .faq-contact-list li {
    font-size: 0.95rem;
  }
  .faq-trust {
    padding: 20px 28px;
    font-size: 0.88rem;
  }
}

/* ---------- 宽屏 (≥1024px) ---------- */
@media (min-width: 1024px) {
  .page-faq {
    padding: 56px 40px 96px;
    max-width: 960px;
  }
  .faq-hero-title {
    font-size: 4rem;
  }
  .faq-search-input {
    padding: 16px 52px 16px 24px;
    font-size: 1.05rem;
  }
  .faq-answer-img {
    max-width: 280px;
  }
  .faq-section {
    gap: 20px;
  }
  .faq-list {
    gap: 14px;
  }
}

/* ---------- 移动端微调 ---------- */
@media (max-width: 480px) {
  .page-faq {
    padding: 24px 12px 40px;
    gap: 40px;
  }
  .faq-question {
    padding: 14px 16px;
    gap: 10px;
    font-size: 0.95rem;
  }
  .faq-q-mono {
    font-size: 0.75rem;
    padding: 2px 8px;
  }
  .faq-answer {
    padding: 0 16px 16px;
    font-size: 0.9rem;
  }
  .faq-hero-title {
    font-size: 1.9rem;
  }
  .faq-search-input {
    padding: 12px 44px 12px 16px;
    font-size: 0.95rem;
  }
  .faq-contact-list li {
    padding-left: 12px;
    font-size: 0.88rem;
  }
  .faq-trust {
    padding: 12px 16px;
    font-size: 0.8rem;
  }
}