.page-faq {
  --faq-paper-line: rgba(11, 12, 14, 0.14);
  --faq-chip-line: rgba(213, 216, 221, 0.18);
}

/* ---------- 页头 ---------- */
.page-faq .faq-top {
  padding-top: clamp(20px, 3.6vw, 40px);
}

.page-faq .faq-head {
  margin-top: clamp(20px, 3.4vw, 36px);
  padding-bottom: 0;
}

.page-faq .faq-head .page-head__lede {
  max-width: 64ch;
}

/* ---------- 工具栏 ---------- */
.page-faq .faq-bar {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  margin-top: clamp(24px, 3.6vw, 40px);
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: 1 1 100%;
  min-width: 0;
  height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--ink-800);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-search:focus-within {
  border-color: var(--red-400);
}

.page-faq .faq-search__icon {
  position: relative;
  flex: none;
  width: 13px;
  height: 13px;
  border: 1.5px solid var(--gold-500);
  border-radius: 50%;
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -4px;
  width: 6px;
  height: 1.5px;
  background: var(--gold-500);
  transform: rotate(45deg);
  transform-origin: left center;
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  border: 0;
  background: transparent;
  color: var(--gray-200);
  font-family: var(--font-sans);
  font-size: 0.92rem;
}

.page-faq .faq-search__input:focus {
  outline: none;
}

.page-faq .faq-search__input::placeholder {
  color: var(--gray-400);
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  width: 100%;
}

.page-faq .faq-chips .chip {
  appearance: none;
  border: 1px solid var(--faq-chip-line);
  background: transparent;
  color: var(--gray-400);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  line-height: 1;
  padding: 9px 15px;
  border-radius: 999px;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-chips .chip:hover {
  color: var(--gray-200);
  border-color: rgba(213, 216, 221, 0.36);
}

.page-faq .faq-chips .chip[aria-pressed="true"] {
  background: var(--red-600);
  border-color: var(--red-600);
  color: #fff;
}

.page-faq .faq-chips .chip:focus-visible {
  outline: 2px solid var(--red-400);
  outline-offset: 2px;
}

/* ---------- 双栏 ---------- */
.page-faq .faq-duo {
  padding-top: clamp(36px, 6vw, 76px);
}

.page-faq .faq-duo__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 48px);
  align-items: start;
}

/* ---------- 左栏 ---------- */
.page-faq .faq-rail__panel {
  padding: clamp(18px, 2.4vw, 26px);
  border-radius: var(--radius);
}

.page-faq .faq-rail__figure {
  margin: 0 0 18px;
}

.page-faq .faq-rail__figure .figure__frame {
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-faq .faq-rail__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-rail__label {
  margin: 0;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--red-600);
}

.page-faq .faq-rail__title {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-faq .faq-cats {
  list-style: none;
  margin: 18px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--faq-paper-line);
  display: grid;
  gap: 14px;
}

.page-faq .faq-cat {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding-left: 12px;
  border-left: 2px solid var(--gold-500);
}

.page-faq .faq-cat__num {
  font-family: var(--font-head);
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--red-600);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-cat__name {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-faq .faq-cat__text {
  margin: 3px 0 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(11, 12, 14, 0.68);
}

.page-faq .faq-selfcheck {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed rgba(11, 12, 14, 0.22);
}

.page-faq .faq-selfcheck__title {
  margin: 0 0 12px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--ink-900);
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 30px;
  font-size: 0.86rem;
  line-height: 1.72;
  color: rgba(11, 12, 14, 0.76);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 1px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border: 1px solid var(--red-600);
  border-radius: 50%;
  color: var(--red-600);
  font-size: 0.7rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ---------- 右栏问答 ---------- */
.page-faq .faq-stream__head {
  margin-bottom: 20px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(26px, 4vw, 40px);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin: 0 0 8px;
  padding-bottom: 10px;
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #fff;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-group__count {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gold-500);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 500;
  line-height: 1.65;
  color: var(--gray-200);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__summary::marker {
  content: "";
}

.page-faq .faq-item__summary:hover {
  color: #fff;
}

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--red-400);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 1px solid var(--gold-500);
  border-radius: 4px;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--gold-500);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

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

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

.page-faq .faq-item[open] .faq-item__sign {
  background: var(--red-600);
  border-color: var(--red-600);
}

.page-faq .faq-item[open] .faq-item__sign::before,
.page-faq .faq-item[open] .faq-item__sign::after {
  background: #fff;
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 0 4px 20px 36px;
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--gray-200);
}

/* ---------- 会员中心 ---------- */
.page-faq .faq-member {
  padding-top: clamp(64px, 9vw, 124px);
}

.page-faq .faq-member__grid {
  margin-top: clamp(24px, 3vw, 36px);
}

.page-faq .faq-entries {
  padding: clamp(20px, 2.6vw, 28px);
}

.page-faq .faq-entries__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-entries__list li {
  padding: 12px;
  border-radius: var(--radius-sm);
  background: rgba(11, 12, 14, 0.34);
  border-left: 2px solid var(--red-600);
  font-size: 0.88rem;
  line-height: 1.4;
  color: var(--gray-200);
}

.page-faq .faq-member__qa {
  border-top: 1px solid var(--line-soft);
}

/* ---------- 反馈渠道 ---------- */
.page-faq .faq-feedback {
  padding-top: clamp(64px, 9vw, 124px);
}

.page-faq .faq-feedback__split {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-channel {
  padding: clamp(20px, 2.6vw, 28px);
}

.page-faq .faq-channel__title {
  margin: 12px 0 8px;
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-channel__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-faq .faq-channel__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-channel__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.88rem;
  line-height: 1.65;
}

.page-faq .faq-channel__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.68em;
  width: 6px;
  height: 6px;
  background: var(--red-600);
  transform: rotate(45deg);
}

.page-faq .panel--paper .faq-channel__title,
.page-faq .panel--paper .faq-channel__text,
.page-faq .panel--paper .faq-channel__list li {
  color: var(--ink-900);
}

.page-faq .panel--steel .faq-channel__title {
  color: #fff;
}

.page-faq .panel--steel .faq-channel__text,
.page-faq .panel--steel .faq-channel__list li {
  color: var(--gray-200);
}

.page-faq .faq-feedback__figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
  max-width: 880px;
}

.page-faq .faq-feedback__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-feedback__figure .figure__caption {
  margin-top: 10px;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--gray-400);
}

/* ---------- 页尾延伸 ---------- */
.page-faq .faq-tail {
  padding: clamp(44px, 6vw, 76px) 0 clamp(56px, 8vw, 104px);
}

.page-faq .faq-tail p {
  margin: 0;
  max-width: 72ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--gray-400);
}

.page-faq .faq-tail a {
  color: var(--red-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-tail a:hover {
  color: var(--gold-500);
}

.page-faq .faq-tail a:focus-visible {
  outline: 2px solid var(--red-400);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .page-faq .faq-chips {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

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

  .page-faq .faq-chips .chip {
    flex: none;
  }

  .page-faq .faq-item__body {
    padding-left: 4px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-bar__inner {
    flex-wrap: nowrap;
  }

  .page-faq .faq-search {
    flex: 0 1 320px;
  }

  .page-faq .faq-chips {
    width: auto;
    flex: 1 1 auto;
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-duo__grid {
    grid-template-columns: minmax(0, 344px) minmax(0, 1fr);
    gap: clamp(36px, 4vw, 60px);
  }

  .page-faq .faq-rail__panel {
    position: sticky;
    top: calc(var(--header-h) + 100px);
    max-height: calc(100vh - var(--header-h) - 128px);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .page-faq .faq-rail__panel::-webkit-scrollbar {
    width: 6px;
  }

  .page-faq .faq-rail__panel::-webkit-scrollbar-thumb {
    background: rgba(11, 12, 14, 0.24);
    border-radius: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-bar,
  .page-faq .faq-search,
  .page-faq .faq-chips .chip,
  .page-faq .faq-item__summary,
  .page-faq .faq-item__sign,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after {
    transition: none;
  }
}