.page-faq {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .faq-crumbs {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-masthead {
  position: relative;
  padding-block: 26px 40px;
  overflow: hidden;
}

.page-faq .faq-masthead__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.page-faq .faq-masthead__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.6vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-masthead__lead {
  margin: 18px 0 0;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-masthead__hint {
  margin: 14px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
  max-width: 560px;
}

.page-faq .faq-masthead__slant {
  display: none;
}

.page-faq .faq-masthead__note {
  display: none;
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-bottom: 64px;
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-toc {
  border-top: 1px solid var(--rule);
  padding-top: 14px;
}

.page-faq .faq-toc__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate);
  text-transform: uppercase;
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toc__item {
  flex: 0 0 auto;
}

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--rule);
  color: var(--slate);
  font-size: 14px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--ink);
  border-color: var(--gold);
  background: var(--highlight);
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-group {
  position: relative;
  padding: 24px 0 26px;
  border-top: 1px solid var(--rule);
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 34px;
}

.page-faq .faq-group--tint {
  border-top-color: transparent;
  padding: 26px clamp(18px, 3.4vw, 32px) 28px;
  background: var(--paper-deep);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 10px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 3.6vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-group__intro {
  margin: 0 0 6px;
  max-width: 620px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--rule);
  background: transparent;
}

.page-faq .faq-group__intro + .faq-item {
  border-top: 1px solid var(--rule);
}

.page-faq .faq-item__h {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-item__head {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  margin: 0;
  padding: 16px 0;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.62;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item__head::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: var(--gold);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.2s var(--ease);
}

.page-faq .faq-item[data-open] .faq-item__head::before {
  transform: scaleY(1);
}

.page-faq .faq-item__head:hover,
.page-faq .faq-item__head:focus-visible {
  color: var(--ink-deep);
}

.page-faq .faq-item__head:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__sign {
  position: relative;
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  margin-top: 7px;
  color: var(--slate);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.page-faq .faq-item__sign::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-item__sign::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-50%) scaleY(1);
  transition: transform 0.2s var(--ease);
}

.page-faq .faq-item[data-open] .faq-item__sign {
  color: var(--gold);
}

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

.page-faq .faq-item__body {
  display: none;
  padding: 0 0 20px;
}

.page-faq .faq-item[data-open] .faq-item__body {
  display: block;
}

.page-faq .faq-item__answer {
  max-width: 660px;
  padding-left: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-item__answer p {
  margin: 0 0 10px;
}

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

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 1.08em;
  letter-spacing: 0.01em;
  color: var(--ink);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 4px;
  max-width: 660px;
}

.page-faq .faq-figure--lead {
  margin: 4px 0 14px;
  max-width: none;
}

.page-faq .faq-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--highlight);
  outline: 1px solid var(--rule);
}

.page-faq .faq-figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 反馈面板 ---------- */
.page-faq .faq-help {
  padding-block: 4px 72px;
}

.page-faq .faq-help__panel {
  position: relative;
  padding: clamp(26px, 5vw, 52px);
  background: var(--ink);
  color: var(--paper);
  clip-path: polygon(0 0, calc(100% - 32px) 0, 100% 32px, 100% 100%, 0 100%);
}

.page-faq .faq-help__num {
  position: absolute;
  top: 16px;
  right: 28px;
  font-family: var(--font-mono);
  font-size: 46px;
  line-height: 1;
  color: var(--gold);
  opacity: 0.4;
}

.page-faq .faq-help__eyebrow {
  color: var(--gold-soft);
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  max-width: 560px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 4vw, 34px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--highlight);
}

.page-faq .faq-help__lead {
  margin: 16px 0 0;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.85;
  color: #C8D0DA;
}

.page-faq .faq-help__channels {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__channels li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(199, 190, 170, 0.26);
}

.page-faq .faq-help__ch-label {
  flex: 0 0 auto;
  min-width: 68px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold-soft);
}

.page-faq .faq-help__ch-value {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--highlight);
  word-break: break-word;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  margin-top: 26px;
}

.page-faq .faq-help__cta {
  display: inline-flex;
  align-items: center;
  padding: 13px 24px;
  background: var(--gold);
  color: var(--ink-deep);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: background-color 0.24s var(--ease), color 0.24s var(--ease);
}

.page-faq .faq-help__cta:hover,
.page-faq .faq-help__cta:focus-visible {
  background: var(--highlight);
  color: var(--ink);
}

.page-faq .faq-help__link {
  padding-bottom: 3px;
  border-bottom: 1px solid var(--slate);
  color: var(--paper);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-help__link:hover,
.page-faq .faq-help__link:focus-visible {
  color: var(--gold-soft);
  border-color: var(--gold-soft);
}

.page-faq .faq-help__note {
  margin: 24px 0 0;
  max-width: 620px;
  font-size: 13px;
  line-height: 1.8;
  color: #A9B4C0;
}

.page-faq .faq-help__note-link {
  color: var(--gold-soft);
}

/* ---------- 中等屏 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-help__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 32px;
  }

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

  .page-faq .faq-item__answer {
    font-size: 15px;
    padding-left: 2px;
  }
}

/* ---------- 桌面：左目录 + 右内容 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-masthead {
    padding-block: 40px 56px;
  }

  .page-faq .faq-masthead__inner {
    max-width: 700px;
  }

  .page-faq .faq-masthead__slant {
    display: block;
    position: absolute;
    right: 0;
    top: 34%;
    width: 34%;
    height: 1px;
    background: var(--rule);
    transform: rotate(-16deg);
    transform-origin: right center;
  }

  .page-faq .faq-masthead__note {
    display: block;
    position: absolute;
    top: 44px;
    right: calc(var(--pad-x) - 6px);
    color: var(--slate);
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, 246px) minmax(0, 1fr);
    gap: clamp(40px, 5.5vw, 80px);
    align-items: start;
    padding-bottom: 88px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--bar-h) + 34px);
    border-top: 0;
    padding-top: 2px;
  }

  .page-faq .faq-toc__list {
    display: block;
    border-left: 1px solid var(--rule);
    padding: 0;
    overflow: visible;
  }

  .page-faq .faq-toc__item {
    display: block;
  }

  .page-faq .faq-toc__link {
    display: block;
    position: relative;
    padding: 10px 0 10px 20px;
    border: 0;
    background: transparent;
    font-size: 14px;
    line-height: 1.55;
  }

  .page-faq .faq-toc__link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width 0.2s var(--ease);
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    background: transparent;
    color: var(--ink);
  }

  .page-faq .faq-toc__link:hover::before,
  .page-faq .faq-toc__link:focus-visible::before {
    width: 13px;
  }

  .page-faq .faq-group {
    padding: 30px 0 34px;
  }

  .page-faq .faq-group:first-child {
    padding-top: 6px;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 48px;
  }

  .page-faq .faq-group--tint {
    padding: 34px clamp(28px, 3.6vw, 44px) 36px;
  }

  .page-faq .faq-item__head {
    padding: 19px 0;
    font-size: 17px;
  }

  .page-faq .faq-item__head::before {
    top: 21px;
    bottom: 21px;
  }

  .page-faq .faq-item__body {
    padding-bottom: 26px;
  }

  .page-faq .faq-help {
    padding-bottom: 96px;
  }
}

/* ---------- 动效退让 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__link,
  .page-faq .faq-toc__link::before,
  .page-faq .faq-item__head,
  .page-faq .faq-item__head::before,
  .page-faq .faq-item__sign,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-help__cta,
  .page-faq .faq-help__link {
    transition-duration: 0.01ms;
  }
}