/* ===== 问题解答 page-faq 页面专属样式 ===== */
.page-faq {
  --faq-soft-bg: #EDF2F0;
  --faq-white: #FFFFFF;
  --faq-line: #D5E0DC;
  --faq-accent-soft: #FFEDE4;
  --faq-ink-soft: #3A4A44;
  background-color: var(--faq-soft-bg);
  background-image:
    linear-gradient(rgba(11, 61, 46, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 61, 46, 0.035) 1px, transparent 1px);
  background-size: 100% 44px, 44px 100%;
}

/* 顶部帮助中心 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 34px 0 36px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: repeating-linear-gradient(135deg, transparent, transparent 12px, rgba(255, 107, 53, 0.16) 12px, rgba(255, 107, 53, 0.16) 16px);
  clip-path: polygon(25% 0, 100% 0, 100% 75%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .faq-hero-copy {
  min-width: 0;
}

.page-faq .faq-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 14px;
}

.page-faq .faq-eyebrow::before {
  content: "";
  width: 30px;
  height: 5px;
  background: var(--c-accent);
  clip-path: polygon(0 0, 100% 0, 82% 100%, 0 100%);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 900;
  font-style: italic;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--c-primary);
  text-transform: uppercase;
  margin: 0 0 18px;
}

.page-faq .faq-hero-lead {
  max-width: 600px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
  margin: 0;
}

.page-faq .faq-search {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 480px;
  margin-top: 26px;
  padding: 12px 18px;
  background: var(--faq-white);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-search::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 30px;
  height: 30px;
  background: var(--c-accent);
  clip-path: polygon(0 0, 100% 100%, 0 100%);
  opacity: 0.9;
}

.page-faq .faq-search-mark {
  font-family: var(--font-num);
  font-size: 24px;
  line-height: 1;
  color: var(--c-accent);
}

.page-faq .faq-search-text {
  font-size: 14px;
  color: var(--c-muted);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero-figure {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
}

.page-faq .faq-hero-figure img,
.page-faq .faq-device-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 分类胶囊导航 */
.page-faq .faq-cats-wrap {
  padding: 12px 0;
  background: rgba(237, 242, 240, 0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-cats {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 2px;
  scrollbar-width: none;
}

.page-faq .faq-cats::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-cats a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: var(--faq-white);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
  text-decoration: none;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.page-faq .faq-cats a::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  opacity: 0.6;
}

.page-faq .faq-cats a:hover {
  border-color: var(--c-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(11, 61, 46, 0.1);
}

/* 分节布局 */
.page-faq .faq-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding-top: 50px;
  padding-bottom: 24px;
  scroll-margin-top: 110px;
}

.page-faq .faq-section + .faq-section {
  border-top: 1px solid rgba(11, 61, 46, 0.1);
}

.page-faq .faq-section-side {
  border-left: 4px solid var(--c-accent);
  padding-left: 18px;
}

.page-faq .faq-section-num {
  display: block;
  font-family: var(--font-num);
  font-size: 16px;
  font-style: italic;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  margin-bottom: 8px;
}

.page-faq .faq-section-side h2 {
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 900;
  font-style: italic;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-primary);
  margin: 0 0 8px;
}

.page-faq .faq-section-side h2::after {
  content: "";
  display: block;
  width: 42px;
  height: 5px;
  background: var(--c-accent);
  clip-path: polygon(0 0, 100% 0, 78% 100%, 0 100%);
  margin-top: 6px;
}

.page-faq .faq-section-side p {
  max-width: 230px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 10px 0 0;
}

.page-faq .faq-acc {
  min-width: 0;
}

/* 手风琴 */
.page-faq .faq-item {
  margin-bottom: 12px;
  background: var(--faq-white);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 107, 53, 0.45);
  box-shadow: 0 12px 30px rgba(11, 61, 46, 0.08);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 18px 18px 18px 22px;
  list-style: none;
  cursor: pointer;
  user-select: none;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: -2px;
  border-radius: var(--radius-lg);
}

.page-faq .faq-q-num {
  font-family: var(--font-num);
  font-size: 13px;
  font-style: italic;
  font-weight: 700;
  line-height: 1;
  color: var(--c-accent);
  background: var(--faq-accent-soft);
  padding: 5px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.page-faq .faq-q-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-ink);
  transition: color var(--transition);
}

.page-faq .faq-item[open] .faq-q-title {
  color: var(--c-primary);
}

.page-faq .faq-q-icon {
  position: relative;
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border: 1.5px solid var(--c-line);
  border-radius: 8px 2px 8px 2px;
  transition: background var(--transition), border-color var(--transition);
}

.page-faq .faq-q-icon::before,
.page-faq .faq-q-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--c-accent);
  transition: transform var(--transition), background var(--transition);
}

.page-faq .faq-q-icon::before {
  width: 10px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q-icon::after {
  width: 1.5px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[open] .faq-q-icon {
  background: var(--c-accent);
  border-color: var(--c-accent);
}

.page-faq .faq-item[open] .faq-q-icon::before,
.page-faq .faq-item[open] .faq-q-icon::after {
  background: #ffffff;
}

.page-faq .faq-item[open] .faq-q-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-a {
  padding: 4px 22px 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .faq-a p {
  margin: 0 0 8px;
}

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

.page-faq .faq-a a {
  color: var(--c-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(11, 61, 46, 0.3);
  transition: text-decoration-color var(--transition);
}

.page-faq .faq-a a:hover {
  text-decoration-color: var(--c-accent);
}

.page-faq .faq-a mark {
  background: linear-gradient(to top, rgba(255, 107, 53, 0.28) 30%, transparent 30%);
  color: var(--c-ink);
  font-weight: 700;
  padding: 0 2px;
  border-radius: 2px;
}

/* 设备兼容性示意 */
.page-faq .faq-device-figure {
  margin-top: 20px;
  overflow: hidden;
  background: var(--faq-white);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
}

.page-faq .faq-device-caption {
  margin: 0;
  padding: 12px 16px 14px;
  font-size: 13px;
  color: var(--c-muted);
  text-align: center;
  letter-spacing: 0.03em;
}

/* 联系支持 */
.page-faq .faq-support {
  position: relative;
  overflow: hidden;
  margin-top: 48px;
  padding: 52px 0 56px;
  background: var(--c-primary);
  color: #ffffff;
  scroll-margin-top: 110px;
}

.page-faq .faq-support::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 40%;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.05), transparent 70%);
  clip-path: polygon(0 0, 100% 0, 68% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-support .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-faq .faq-support-side {
  border-left: 4px solid var(--c-accent);
  padding-left: 18px;
}

.page-faq .faq-section-num-light {
  color: var(--c-highlight);
}

.page-faq .faq-support-side h2 {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 900;
  font-style: italic;
  color: #ffffff;
  margin: 0 0 8px;
}

.page-faq .faq-support-side h2::after {
  content: "";
  display: block;
  width: 42px;
  height: 5px;
  background: var(--c-accent);
  clip-path: polygon(0 0, 100% 0, 78% 100%, 0 100%);
  margin-top: 6px;
}

.page-faq .faq-support-side p {
  max-width: 240px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
  margin: 10px 0 0;
}

.page-faq .faq-support-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-support-card {
  padding: 22px 22px 24px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
}

.page-faq .faq-support-card h3 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 0.05em;
  color: var(--c-accent);
  margin: 0 0 10px;
}

.page-faq .faq-support-card > p:nth-child(2) {
  font-family: var(--font-num);
  font-size: 17px;
  font-weight: 500;
  color: #ffffff;
  margin: 0 0 10px;
  word-break: break-all;
}

.page-faq .faq-support-note {
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.68);
  margin: 0 0 16px;
}

.page-faq .faq-support-card .btn {
  padding: 9px 18px;
  font-size: 13px;
}

.page-faq .btn-light {
  border-color: rgba(255, 255, 255, 0.6);
  color: #ffffff;
}

.page-faq .btn-light:hover,
.page-faq .btn-light:focus {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
  color: #ffffff;
}

.page-faq .faq-support-more {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px dashed rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-md);
}

.page-faq .faq-more-mark {
  font-family: var(--font-num);
  font-size: 12px;
  font-style: italic;
  font-weight: 700;
  color: var(--c-highlight);
  border: 1px solid rgba(201, 162, 39, 0.55);
  border-radius: 4px;
  padding: 3px 8px;
  white-space: nowrap;
}

.page-faq .faq-support-more p {
  flex: 1;
  min-width: 240px;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.84);
}

.page-faq .faq-support-more a {
  color: var(--c-highlight);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(201, 162, 39, 0.5);
  transition: text-decoration-color var(--transition);
}

.page-faq .faq-support-more a:hover {
  text-decoration-color: var(--c-accent);
}

/* 展开内容动画 */
@keyframes faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-item[open] .faq-a {
  animation: faq-fade-in 0.3s var(--ease);
}

/* 响应式：平板及以上 */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 50px 0 58px;
  }

  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: 48px;
  }

  .page-faq .faq-hero-figure {
    transform: rotate(1.5deg) translateX(8px);
  }

  .page-faq .faq-section {
    grid-template-columns: 230px 1fr;
    gap: 44px;
    padding-top: 66px;
  }

  .page-faq .faq-section-side {
    position: sticky;
    top: 140px;
    align-self: start;
  }

  .page-faq .faq-q-title {
    font-size: 17px;
  }

  .page-faq .faq-a {
    padding: 4px 24px 24px 64px;
    font-size: 15px;
  }

  .page-faq .faq-support {
    padding: 58px 0 64px;
  }

  .page-faq .faq-support .container {
    grid-template-columns: 260px 1fr;
    gap: 48px;
  }

  .page-faq .faq-support-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* 响应式：桌面导航浮层 */
@media (min-width: 992px) {
  .page-faq .faq-cats-wrap {
    position: sticky;
    top: calc(var(--header-top) + var(--header-h) - 6px);
    z-index: 8;
  }

  .page-faq .faq-section {
    grid-template-columns: 270px 1fr;
  }
}

/* 响应式：宽屏微调 */
@media (min-width: 1080px) {
  .page-faq .faq-section {
    grid-template-columns: 280px 1fr;
  }
}