.page-faq {
  background: var(--ph-bg);
  color: var(--ph-text);
}

/* ========== 首屏 ========== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--ph-border);
  background:
    radial-gradient(ellipse at 85% 0%, rgba(139, 0, 0, 0.38), transparent 56%),
    var(--ph-bg);
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 2;
  padding-bottom: 64px;
}

.page-faq .breadcrumb {
  margin-bottom: 32px;
}

.page-faq .faq-hero-kicker {
  display: block;
  margin-bottom: 16px;
  color: var(--ph-gold);
  font-family: var(--ph-font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-faq .faq-hero-title {
  margin: 0 0 20px;
  font-family: var(--ph-font-heading);
  font-size: clamp(2.1rem, 6vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

.page-faq .faq-hero-desc {
  max-width: 640px;
  margin: 0 0 28px;
  color: var(--ph-text-gray);
  font-family: var(--ph-font-body);
  font-size: 1rem;
  line-height: 1.75;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-faq .faq-hero-watermark {
  position: absolute;
  right: -20px;
  bottom: -50px;
  z-index: 1;
  pointer-events: none;
  user-select: none;
  color: rgba(255, 255, 255, 0.03);
  font-family: var(--ph-font-heading);
  font-size: clamp(6rem, 16vw, 12rem);
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1;
}

.page-faq .faq-hero-aside {
  display: none;
}

@media (min-width: 768px) {
  .page-faq .faq-hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 240px;
    align-items: end;
    gap: 40px;
    min-height: 420px;
    padding-bottom: 72px;
  }

  .page-faq .faq-hero-aside {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    padding-left: 24px;
    border-left: 1px solid var(--ph-border);
    text-align: right;
  }

  .page-faq .faq-hero-aside-num {
    font-family: var(--ph-font-heading);
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 0.9;
    color: var(--ph-gold);
  }

  .page-faq .faq-hero-aside-unit {
    font-size: 2rem;
  }

  .page-faq .faq-hero-aside-label {
    margin-top: 10px;
    font-family: var(--ph-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
  }

  .page-faq .faq-hero-aside-line {
    width: 72px;
    height: 2px;
    margin: 18px 0 14px;
    background: var(--ph-gold);
  }

  .page-faq .faq-hero-aside-note {
    max-width: 220px;
    color: var(--ph-text-gray);
    font-family: var(--ph-font-body);
    font-size: 0.85rem;
    line-height: 1.7;
  }
}

/* ========== 分类导航与常见问题 ========== */
.page-faq .faq-index,
.page-faq .faq-feedback {
  scroll-margin-top: calc(var(--ph-header-h, 76px) + 16px);
}

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

.page-faq .faq-section-head {
  margin-bottom: 40px;
}

.page-faq .faq-index-area {
  position: relative;
}

.page-faq .faq-filter-radio {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-category-nav {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  padding-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-cat-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--ph-border);
  background: var(--ph-surface);
  color: var(--ph-text-gray);
  font-family: var(--ph-font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.3s var(--ph-ease), color 0.3s ease, border-color 0.3s ease;
}

.page-faq .faq-cat-index {
  color: var(--ph-gold);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.page-faq .faq-cat-btn:hover {
  border-color: var(--ph-gold);
  color: var(--ph-text);
}

.page-faq .faq-cat-btn:active {
  transform: translateY(1px);
}

.page-faq .faq-index-area #faq-filter-all:checked ~ .faq-category-nav label[for="faq-filter-all"],
.page-faq .faq-index-area #faq-filter-account:checked ~ .faq-category-nav label[for="faq-filter-account"],
.page-faq .faq-index-area #faq-filter-rank:checked ~ .faq-category-nav label[for="faq-filter-rank"],
.page-faq .faq-index-area #faq-filter-subscribe:checked ~ .faq-category-nav label[for="faq-filter-subscribe"],
.page-faq .faq-index-area #faq-filter-feedback:checked ~ .faq-category-nav label[for="faq-filter-feedback"] {
  background: var(--ph-red);
  border-color: var(--ph-red);
  color: var(--ph-text);
}

.page-faq .faq-filter-radio:focus-visible ~ .faq-category-nav label[for="faq-filter-all"],
.page-faq .faq-filter-radio:focus-visible ~ .faq-category-nav label[for="faq-filter-account"],
.page-faq .faq-filter-radio:focus-visible ~ .faq-category-nav label[for="faq-filter-rank"],
.page-faq .faq-filter-radio:focus-visible ~ .faq-category-nav label[for="faq-filter-subscribe"],
.page-faq .faq-filter-radio:focus-visible ~ .faq-category-nav label[for="faq-filter-feedback"] {
  outline: 2px solid var(--ph-gold);
  outline-offset: 2px;
}

.page-faq .faq-items {
  display: grid;
  gap: 12px;
}

.page-faq .faq-list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--ph-border);
  margin-bottom: 4px;
}

.page-faq .faq-list-title {
  margin: 0;
  font-family: var(--ph-font-heading);
  font-size: 0.95rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.page-faq .faq-list-meta {
  color: var(--ph-text-gray);
  font-family: var(--ph-font-body);
  font-size: 0.8rem;
}

.page-faq .faq-item {
  display: none;
  animation: faqFadeIn 0.4s var(--ph-ease);
}

.page-faq .faq-index-area #faq-filter-all:checked ~ .faq-items .faq-item,
.page-faq .faq-index-area #faq-filter-account:checked ~ .faq-items .faq-item[data-category="account"],
.page-faq .faq-index-area #faq-filter-rank:checked ~ .faq-items .faq-item[data-category="rank"],
.page-faq .faq-index-area #faq-filter-subscribe:checked ~ .faq-items .faq-item[data-category="subscribe"],
.page-faq .faq-index-area #faq-filter-feedback:checked ~ .faq-items .faq-item[data-category="feedback"] {
  display: block;
}

@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 手风琴 */
.page-faq .faq-accordion {
  border: 1px solid var(--ph-border);
  background: var(--ph-surface);
  transition: border-color 0.3s var(--ph-ease), background 0.3s ease;
}

.page-faq .faq-accordion[open] {
  border-color: rgba(212, 175, 55, 0.55);
  background: var(--ph-surface-2);
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  list-style: none;
  cursor: pointer;
  color: var(--ph-text);
  font-family: var(--ph-font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.5;
}

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

.page-faq .faq-question:hover .faq-q-text {
  color: var(--ph-gold);
}

.page-faq .faq-q-text {
  transition: color 0.3s ease;
}

.page-faq .faq-q-icon {
  flex: 0 0 auto;
  display: inline-flex;
}

.page-faq .faq-q-icon svg {
  display: block;
  stroke: var(--ph-gold);
  transition: transform 0.32s var(--ph-ease);
}

.page-faq .faq-accordion[open] .faq-q-icon svg {
  transform: rotate(45deg);
}

.page-faq .faq-answer {
  padding: 0 20px 20px;
  border-top: 1px solid var(--ph-border);
  animation: faqAnswerIn 0.35s var(--ph-ease);
}

@keyframes faqAnswerIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-answer p {
  margin: 14px 0 0;
  color: var(--ph-text-gray);
  font-family: var(--ph-font-body);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ========== 反馈入口 ========== */
.page-faq .faq-feedback {
  padding: 64px 0;
  border-top: 1px solid var(--ph-border);
  background:
    radial-gradient(ellipse at 0% 30%, rgba(139, 0, 0, 0.28), transparent 60%),
    var(--ph-bg);
}

.page-faq .faq-feedback-grid {
  display: grid;
  gap: 40px;
  align-items: center;
}

.page-faq .faq-feedback-card {
  position: relative;
  display: grid;
  gap: 20px;
  margin-top: 24px;
  padding: 24px;
  background: var(--ph-surface);
  border: 1px solid var(--ph-border);
  border-left: 3px solid var(--ph-gold);
}

.page-faq .faq-feedback-field {
  display: grid;
  gap: 6px;
}

.page-faq .faq-feedback-label {
  color: var(--ph-gold);
  font-family: var(--ph-font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-faq .faq-feedback-mail {
  color: var(--ph-text);
  font-family: var(--ph-font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px dashed rgba(212, 175, 55, 0.6);
  word-break: break-all;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.page-faq .faq-feedback-mail:hover {
  color: var(--ph-gold-light);
  border-color: var(--ph-gold);
}

.page-faq .faq-feedback-row {
  display: grid;
  gap: 16px;
  padding-top: 4px;
  border-top: 1px solid var(--ph-border);
}

.page-faq .faq-feedback-value {
  color: var(--ph-text-gray);
  font-family: var(--ph-font-body);
  font-size: 0.93rem;
  line-height: 1.6;
}

.page-faq .faq-feedback-btn {
  justify-self: start;
}

.page-faq .faq-contact-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--ph-border);
}

.page-faq .faq-contact-label {
  flex-basis: 100%;
  color: var(--ph-text-gray);
  font-family: var(--ph-font-body);
  font-size: 0.85rem;
}

.page-faq .faq-contact-item {
  color: var(--ph-text);
  font-family: var(--ph-font-heading);
  font-size: 0.88rem;
  line-height: 1.6;
}

.page-faq a.faq-contact-item {
  color: var(--ph-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 175, 55, 0.35);
  transition: color 0.3s ease, border-color 0.3s ease;
}

.page-faq a.faq-contact-item:hover {
  color: var(--ph-gold-light);
  border-color: var(--ph-gold-light);
}

.page-faq .faq-feedback-figure {
  margin: 0;
}

.page-faq .faq-feedback-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ph-border);
}

/* ========== 响应承诺 ========== */
.page-faq .faq-promise {
  padding: 64px 0 40px;
  border-top: 1px solid var(--ph-border);
  background: var(--ph-bg);
}

.page-faq .faq-promise-inner {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-faq .faq-promise .section-title {
  margin: 0 0 12px;
}

.page-faq .faq-promise-desc {
  margin: 0;
  color: var(--ph-text-gray);
  font-family: var(--ph-font-body);
  font-size: 0.98rem;
  line-height: 1.7;
}

.page-faq .faq-promise-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-promise-list li {
  position: relative;
  padding-left: 24px;
  color: var(--ph-text);
  font-family: var(--ph-font-body);
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-faq .faq-promise-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  background: var(--ph-gold);
}

.page-faq .faq-promise-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 28px;
}

.page-faq .faq-promise-link {
  color: var(--ph-gold);
  font-family: var(--ph-font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 175, 55, 0.4);
  transition: color 0.3s ease, border-color 0.3s ease;
}

.page-faq .faq-promise-link:hover {
  color: var(--ph-gold-light);
  border-color: var(--ph-gold-light);
}

.page-faq .faq-promise-figure {
  margin: 0;
}

.page-faq .faq-promise-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ph-border);
}

.page-faq .faq-promise-caption {
  margin-top: 10px;
  color: var(--ph-text-gray);
  font-family: var(--ph-font-body);
  font-size: 0.8rem;
  text-align: right;
  letter-spacing: 0.08em;
}

.page-faq .faq-promise-note {
  margin: 48px 0 0;
  padding-top: 20px;
  color: var(--ph-text-gray);
  font-family: var(--ph-font-body);
  font-size: 0.82rem;
  line-height: 1.7;
  border-top: 1px solid var(--ph-border);
}

/* ========== 桌面端布局 ========== */
@media (min-width: 992px) {
  .page-faq .faq-index {
    padding: 96px 0;
  }

  .page-faq .faq-index-area {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-category-nav {
    position: sticky;
    top: calc(var(--ph-header-h, 76px) + 24px);
    flex-direction: column;
    gap: 10px;
    margin: 0;
    padding: 0 0 0 16px;
    overflow: visible;
    border-left: 1px solid var(--ph-border);
  }

  .page-faq .faq-cat-btn {
    justify-content: flex-start;
    padding: 12px 14px;
    font-size: 0.9rem;
  }

  .page-faq .faq-feedback-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 64px;
  }

  .page-faq .faq-feedback-card {
    padding: 28px;
  }

  .page-faq .faq-feedback-row {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .page-faq .faq-promise {
    padding: 96px 0 48px;
  }

  .page-faq .faq-promise-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 72px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-index-area {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 64px;
  }

  .page-faq .faq-feedback-grid {
    gap: 88px;
  }
}

/* ========== 减少动态偏好 ========== */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation: none !important;
    transition: none !important;
  }
}