.page-faq {
  --faq-rule: var(--paper-line);
  --faq-gutter: clamp(1rem, 4vw, 2.5rem);
  background: var(--paper);
  color: var(--brown);
  font-family: var(--font-body);
  font-size: var(--fs-3);
  line-height: 1.78;
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-faq .faq-shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--faq-gutter);
  padding-top: clamp(1rem, 2.4vw, 1.8rem);
}

/* 面包屑 */
.page-faq .breadcrumb {
  margin-bottom: clamp(0.85rem, 2vw, 1.5rem);
  font-size: var(--fs-2);
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: rgba(42, 33, 29, 0.62);
}

.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--silver);
}

.page-faq .breadcrumb a {
  color: var(--brown);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--jade);
  border-bottom-color: var(--gold);
}

.page-faq .breadcrumb-current {
  color: var(--ink);
  font-weight: 600;
}

/* 首屏：问题分类直接进入 */
.page-faq .faq-masthead {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 5vw, 3.4rem) clamp(1.15rem, 4vw, 2.8rem) clamp(1.3rem, 4vw, 2.4rem);
  background:
    radial-gradient(90% 70% at 88% 4%, rgba(214, 168, 75, 0.22) 0%, rgba(214, 168, 75, 0) 60%),
    radial-gradient(70% 60% at 4% 98%, rgba(111, 143, 139, 0.28) 0%, rgba(111, 143, 139, 0) 62%),
    linear-gradient(165deg, var(--ink-deep) 0%, var(--ink) 55%, #101a31 100%);
  color: var(--paper);
}

.page-faq .faq-masthead::after {
  content: "";
  position: absolute;
  inset: 52% -12% -20% -12%;
  z-index: -1;
  background: repeating-linear-gradient(
    176deg,
    transparent 0 24px,
    rgba(201, 209, 214, 0.09) 24px 25px
  );
  -webkit-mask-image: linear-gradient(to top, #000 0%, transparent 90%);
  mask-image: linear-gradient(to top, #000 0%, transparent 90%);
  pointer-events: none;
}

.page-faq .faq-masthead__eyebrow {
  margin: 0;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
}

.page-faq .faq-masthead__title {
  margin: clamp(0.7rem, 2vw, 1.1rem) 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-8);
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-faq .faq-masthead__lede {
  margin: clamp(0.9rem, 2.4vw, 1.4rem) 0 0;
  max-width: 34rem;
  color: var(--silver);
  font-size: var(--fs-3);
  line-height: 1.82;
}

.page-faq .faq-masthead__index {
  list-style: none;
  margin: clamp(1.2rem, 3vw, 2rem) 0 0;
  padding: clamp(1rem, 2.4vw, 1.4rem) 0 0;
  border-top: 1px solid var(--ink-line);
  display: grid;
  gap: 0.5rem;
  grid-template-columns: 1fr;
}

.page-faq .faq-masthead__index a {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-sm);
  color: var(--silver);
  text-decoration: none;
  font-size: var(--fs-2);
  line-height: 1.5;
  transition: color 0.28s var(--ease), border-color 0.28s var(--ease),
    background-color 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-faq .faq-masthead__index a:hover,
.page-faq .faq-masthead__index a:focus-visible {
  color: var(--gold-soft);
  border-color: var(--gold-line);
  background-color: rgba(214, 168, 75, 0.1);
  transform: translateX(2px);
}

.page-faq .faq-masthead__num {
  color: var(--gold);
  font-size: var(--fs-1);
  letter-spacing: 0.04em;
}

/* 版面 */
.page-faq .faq-layout {
  margin-top: clamp(2rem, 5vw, 3.2rem);
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.8rem);
  align-items: start;
}

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

/* 章节 */
.page-faq .faq-section {
  scroll-margin-top: 5.5rem;
}

.page-faq .faq-section + .faq-section {
  margin-top: clamp(2.2rem, 5.5vw, 3.4rem);
  padding-top: clamp(1.9rem, 4.6vw, 2.8rem);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-section__eyebrow {
  margin: 0 0 0.55rem;
  color: var(--jade);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.12em;
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-6);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-section__lede {
  margin: 0.8rem 0 0;
  max-width: 36rem;
  color: rgba(42, 33, 29, 0.78);
  font-size: var(--fs-3);
  line-height: 1.82;
}

/* 图片 */
.page-faq .faq-figure {
  position: relative;
  margin: clamp(1.2rem, 3vw, 1.8rem) 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--ink-deep);
}

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

.page-faq .faq-figure--lead img {
  aspect-ratio: 4 / 3;
}

.page-faq .faq-figure--side img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 1.6rem 0.95rem 0.75rem;
  font-size: var(--fs-1);
  line-height: 1.65;
  color: var(--paper);
  background: linear-gradient(to top, rgba(20, 33, 61, 0.94), rgba(20, 33, 61, 0));
}

/* 问答 */
.page-faq .qa-group {
  margin-top: clamp(1.4rem, 3.4vw, 2rem);
}

.page-faq .qa-group__label {
  position: relative;
  margin: 0 0 0.3rem;
  padding-left: 0.85rem;
  color: var(--ink);
  font-size: var(--fs-1);
  letter-spacing: 0.12em;
}

.page-faq .qa-group__label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.85rem;
  align-items: baseline;
  padding: 0.95rem 0.1rem;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__num {
  color: var(--jade);
  font-size: var(--fs-1);
  letter-spacing: 0.03em;
}

.page-faq .qa__q {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-4);
  line-height: 1.5;
  color: var(--brown);
  transition: color 0.25s var(--ease);
}

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

.page-faq .qa[open] .qa__q {
  color: var(--ink);
}

.page-faq .qa__mark {
  position: relative;
  width: 22px;
  height: 22px;
  align-self: center;
  border: 1px solid var(--silver);
  border-radius: 50%;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--brown);
  transition: transform 0.28s var(--ease), opacity 0.28s var(--ease);
}

.page-faq .qa__mark::before {
  left: 6px;
  right: 6px;
  top: 50%;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-faq .qa__mark::after {
  top: 6px;
  bottom: 6px;
  left: 50%;
  width: 1.5px;
  transform: translateX(-50%);
}

.page-faq .qa[open] .qa__mark {
  border-color: var(--gold);
  background-color: rgba(214, 168, 75, 0.16);
}

.page-faq .qa[open] .qa__mark::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__body {
  padding: 0 0 1.1rem 0.1rem;
}

.page-faq .qa__steps {
  margin: 0;
  padding-left: 1.15rem;
  color: rgba(42, 33, 29, 0.85);
  font-size: var(--fs-3);
  line-height: 1.82;
}

.page-faq .qa__steps li + li {
  margin-top: 0.45rem;
}

.page-faq .qa__steps a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .qa__steps a:hover,
.page-faq .qa__steps a:focus-visible {
  color: var(--jade);
  border-bottom-color: var(--jade);
}

/* 客服通道 */
.page-faq .channel {
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
}

.page-faq .channel__phone {
  border-radius: var(--radius-md);
  padding: 1rem;
  background: linear-gradient(160deg, var(--ink-deep) 0%, var(--ink) 100%);
  color: var(--silver);
}

.page-faq .channel__phone svg {
  display: block;
  width: 100%;
  max-width: 180px;
  height: auto;
  margin-inline: auto;
}

.page-faq .channel__steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .channel__steps li {
  margin-bottom: 0.9rem;
  color: rgba(42, 33, 29, 0.85);
  font-size: var(--fs-3);
  line-height: 1.82;
}

.page-faq .channel__steps li:last-child {
  margin-bottom: 0;
}

.page-faq .channel__tag {
  display: inline-block;
  margin-right: 0.5rem;
  padding: 0.06rem 0.5rem;
  border: 1px solid var(--paper-line);
  border-radius: 999px;
  background: var(--gold-soft);
  color: var(--brown);
  font-size: var(--fs-1);
  letter-spacing: 0.04em;
}

.page-faq .channel__note {
  margin: 1.1rem 0 1rem;
  color: rgba(42, 33, 29, 0.8);
  font-size: var(--fs-3);
  line-height: 1.82;
}

.page-faq .channel__note .copy-btn {
  padding: 0 0.1rem;
  border: none;
  border-bottom: 1px dashed var(--jade);
  background: none;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-2);
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .channel__note .copy-btn:hover,
.page-faq .channel__note .copy-btn:focus-visible {
  color: var(--jade);
  border-bottom-color: var(--gold);
}

/* 资料库 */
.page-faq .lib-grid {
  margin-top: clamp(1.2rem, 3vw, 1.6rem);
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}

.page-faq .lib-card {
  padding: 1.05rem 1.15rem 1.15rem;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #ffffff 0%, #fbf8f1 100%);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease),
    box-shadow 0.3s var(--ease);
}

.page-faq .lib-card:hover {
  border-color: var(--gold-line);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(20, 33, 61, 0.07);
}

.page-faq .lib-card__tag {
  margin: 0 0 0.35rem;
  color: var(--jade);
  font-size: var(--fs-1);
  letter-spacing: 0.1em;
}

.page-faq .lib-card__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-4);
  line-height: 1.35;
  color: var(--ink);
}

.page-faq .lib-card__desc {
  margin: 0;
  color: rgba(42, 33, 29, 0.82);
  font-size: var(--fs-2);
  line-height: 1.8;
}

.page-faq .faq-more {
  margin: 1.1rem 0 0;
  color: rgba(42, 33, 29, 0.8);
  font-size: var(--fs-2);
  line-height: 1.8;
}

.page-faq .faq-more a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-more a:hover,
.page-faq .faq-more a:focus-visible {
  color: var(--jade);
  border-bottom-color: var(--jade);
}

/* 额度三栏 */
.page-faq .quota-cols {
  list-style: none;
  margin: clamp(1.2rem, 3vw, 1.6rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}

.page-faq .quota-col {
  border-top: 2px solid var(--gold);
  padding-top: 0.85rem;
}

.page-faq .quota-col__label {
  margin: 0 0 0.3rem;
  color: var(--jade);
  font-size: var(--fs-1);
  letter-spacing: 0.12em;
}

.page-faq .quota-col__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-4);
  line-height: 1.35;
  color: var(--ink);
}

.page-faq .quota-col__desc {
  margin: 0;
  color: rgba(42, 33, 29, 0.82);
  font-size: var(--fs-2);
  line-height: 1.8;
}

/* 设置中心 */
.page-faq .settings {
  margin-top: clamp(1.2rem, 3vw, 1.6rem);
  display: grid;
  gap: 1.2rem;
}

.page-faq .settings__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-faq .settings__list li {
  padding-left: 0.9rem;
  border-left: 2px solid var(--paper-line);
  color: rgba(42, 33, 29, 0.86);
  font-size: var(--fs-3);
  line-height: 1.8;
  transition: border-color 0.25s var(--ease);
}

.page-faq .settings__list li:hover {
  border-left-color: var(--jade);
}

.page-faq .settings__list strong {
  display: block;
  margin-bottom: 0.1rem;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  font-weight: 600;
  letter-spacing: 0.1em;
}

.page-faq .settings__note {
  margin: 1.1rem 0 0;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--gold-soft);
  color: var(--brown);
  font-size: var(--fs-2);
  line-height: 1.8;
}

.page-faq .settings .faq-figure {
  margin-top: 0;
}

/* 结尾 */
.page-faq .faq-tail {
  margin-top: clamp(2.2rem, 5.5vw, 3.4rem);
  padding: clamp(1.4rem, 4vw, 2.2rem);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: var(--paper);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.6rem;
}

.page-faq .faq-tail p {
  margin: 0;
  max-width: 30rem;
  color: var(--silver);
  font-size: var(--fs-3);
  line-height: 1.8;
}

/* 响应式 */
@media (min-width: 560px) {
  .page-faq .faq-masthead__index {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .lib-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .quota-cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-faq .channel {
    grid-template-columns: 184px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .channel__phone {
    position: sticky;
    top: 6rem;
  }

  .page-faq .qa__body {
    padding-left: 2.4rem;
    padding-right: 1.8rem;
  }
}

@media (min-width: 820px) {
  .page-faq .settings {
    grid-template-columns: minmax(0, 1fr) 296px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 216px minmax(0, 1fr);
  }

  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: 2.2rem;
  }

  .page-faq .faq-masthead__index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-masthead__title {
    max-width: 16ch;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-masthead__title {
    font-size: 2.3rem;
  }

  .page-faq .faq-masthead__lede {
    font-size: 0.9375rem;
  }

  .page-faq .qa__summary {
    gap: 0.55rem;
    padding: 0.85rem 0;
  }

  .page-faq .qa__q {
    font-size: 1.0625rem;
  }

  .page-faq .qa__mark {
    width: 20px;
    height: 20px;
  }

  .page-faq .faq-tail {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}