.page-faq {
  --faq-index-width: 220px;
  --faq-num-width: 2.2em;
  background: var(--c-bg);
  color: var(--c-text);
  min-height: 60vh;
}

/* ===== Hero 头部横幅 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 2.5rem) 0 2rem;
  overflow: hidden;
  background: var(--c-bg);
}
.page-faq .faq-hero__visual {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.page-faq .faq-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .22;
}
.page-faq .faq-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(8, 18, 38, .5) 0%,
    rgba(8, 18, 38, .72) 55%,
    var(--c-bg) 100%
  );
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}
.page-faq .faq-hero__content {
  max-width: 900px;
}
.page-faq .faq-hero__content h1 {
  margin: .5rem 0 .75rem;
  font-family: var(--font-head);
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--c-text);
}
.page-faq .faq-hero__lead {
  max-width: 560px;
  margin: 0;
  color: var(--c-light);
  font-size: 1rem;
  line-height: 1.75;
}
.page-faq .faq-hero__badge {
  display: none;
  width: 116px;
  height: 116px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--c-yellow);
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 48px rgba(255, 195, 0, .28);
}
.page-faq .faq-hero__q {
  font-family: var(--font-data);
  font-size: 4.25rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-bg);
}

.page-faq .faq-hero__tags {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.5rem;
}
.page-faq .faq-tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .45rem .95rem;
  border-radius: var(--r-pill);
  background: rgba(20, 38, 64, .78);
  border: 1px solid rgba(157, 169, 188, .28);
  color: var(--c-text);
  font-size: .813rem;
  font-weight: 500;
  text-decoration: none;
  backdrop-filter: blur(8px);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-faq .faq-tag:hover {
  border-color: var(--c-yellow);
  color: var(--c-yellow);
  transform: translateY(-2px);
}
.page-faq .faq-tag__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-orange);
  transition: background var(--dur) var(--ease);
}
.page-faq .faq-tag:hover .faq-tag__dot {
  background: var(--c-yellow);
}

/* ===== 问答控制台 ===== */
.page-faq .faq-console {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  padding-top: 2.5rem;
  padding-bottom: 3.5rem;
  background: var(--c-bg);
}

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

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

.page-faq .faq-section {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(29, 61, 111, .3);
  transition: padding-left var(--dur) var(--ease);
}
.page-faq .faq-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}
.page-faq .faq-section:target .faq-section__head {
  padding-left: 1rem;
  border-left-color: var(--c-yellow);
}

.page-faq .faq-section__head {
  display: flex;
  align-items: flex-start;
  gap: .875rem;
  margin-bottom: 1.25rem;
  border-left: 3px solid transparent;
  transition: border-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.page-faq .faq-section__index {
  font-family: var(--font-data);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  min-width: 2.6rem;
  color: var(--c-yellow);
  text-shadow: 0 0 28px rgba(255, 195, 0, .22);
}
.page-faq .faq-section__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--c-text);
}
.page-faq .faq-section__head p {
  margin: .25rem 0 0;
  font-size: .875rem;
  line-height: 1.5;
  color: var(--c-muted);
}

/* ===== 流程引导区 ===== */
.page-faq .faq-guide {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.page-faq .faq-guide__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-lg);
  background: var(--c-bg-2);
}
.page-faq .faq-guide__text {
  padding: 1.25rem 1.5rem;
  background: var(--c-bg-2);
  border-radius: var(--r-lg);
  border: 1px solid rgba(29, 61, 111, .3);
}
.page-faq .faq-guide__text .text-lg {
  margin: 0 0 .75rem;
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-text);
}
.page-faq .faq-guide__path {
  display: flex;
  align-items: center;
  gap: .625rem;
  margin: 0 0 .5rem;
  font-size: .938rem;
  line-height: 1.6;
  color: var(--c-muted);
}
.page-faq .faq-guide__path:last-child {
  margin-bottom: 0;
}
.page-faq .faq-guide__step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(255, 195, 0, .12);
  border: 1px solid rgba(255, 195, 0, .35);
  font-family: var(--font-data);
  font-size: .75rem;
  font-weight: 700;
  color: var(--c-yellow);
}

/* ===== 手风琴问答 ===== */
.page-faq .faq-item {
  margin-bottom: .75rem;
  background: rgba(20, 38, 64, .66);
  border: 1px solid rgba(29, 61, 111, .4);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-faq .faq-item:hover {
  border-color: rgba(255, 195, 0, .32);
  background: rgba(23, 43, 74, .82);
}
.page-faq .faq-item[open] {
  border-color: rgba(255, 195, 0, .45);
  background: var(--c-brand);
}
.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: .875rem;
  padding: 1.05rem 1.25rem;
  list-style: none;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}
.page-faq .faq-item[open] summary {
  border-bottom-color: rgba(29, 61, 111, .45);
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::marker {
  content: "";
}
.page-faq .faq-item__num {
  font-family: var(--font-data);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  min-width: var(--faq-num-width);
  color: var(--c-yellow);
  opacity: .85;
}
.page-faq .faq-item__q {
  flex: 1;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-text);
}
.page-faq .faq-item__icon {
  position: relative;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 2px solid var(--c-data);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-muted);
  transform: translate(-50%, -50%);
  transition: background var(--dur) var(--ease);
}
.page-faq .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.page-faq .faq-item[open] .faq-item__icon {
  border-color: var(--c-orange);
  transform: rotate(45deg);
}
.page-faq .faq-item[open] .faq-item__icon::before,
.page-faq .faq-item[open] .faq-item__icon::after {
  background: var(--c-orange);
}
.page-faq .faq-item__a {
  padding: .25rem 1.25rem 1.25rem;
  color: var(--c-muted);
  font-size: .938rem;
  line-height: 1.8;
}
.page-faq .faq-item__a p {
  margin: 0 0 .5rem;
}
.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__a a {
  color: var(--c-yellow);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--dur) var(--ease);
}
.page-faq .faq-item__a a:hover {
  color: var(--c-orange);
}

/* ===== 底部信任声明 ===== */
.page-faq .faq-note {
  position: relative;
  background: var(--c-bg-2);
  padding: 2rem 0;
}
.page-faq .faq-note::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 220px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-yellow), var(--c-orange));
}
.page-faq .faq-note p {
  max-width: 920px;
  margin: 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ===== 桌面端增强 ===== */
@media (min-width: 640px) {
  .page-faq .faq-hero__badge {
    display: flex;
  }
  .page-faq .faq-guide {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: center;
    gap: 1.25rem;
  }
  .page-faq .faq-item__q {
    font-size: 1.0625rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-console {
    grid-template-columns: var(--faq-index-width) minmax(0, 1fr);
    gap: 3rem;
    padding-top: 3.5rem;
    padding-bottom: 5rem;
  }

  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    align-self: start;
    padding: 1.25rem 1rem;
    background: var(--c-bg-2);
    border-radius: var(--r-lg);
    border: 1px solid rgba(29, 61, 111, .35);
  }
  .page-faq .faq-index__title {
    margin: 0;
    padding-bottom: .625rem;
    border-bottom: 1px solid rgba(157, 169, 188, .18);
    font-family: var(--font-data);
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--c-yellow);
  }
  .page-faq .faq-index__hint {
    margin: .5rem 0 .875rem;
    padding: 0 .875rem;
    font-size: .75rem;
    line-height: 1.5;
    color: var(--c-muted);
  }
  .page-faq .faq-index__link {
    display: flex;
    align-items: center;
    gap: .625rem;
    padding: .5rem .875rem;
    border-radius: var(--r-sm);
    font-size: .938rem;
    color: var(--c-muted);
    text-decoration: none;
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  }
  .page-faq .faq-index__link:hover {
    background: rgba(255, 195, 0, .08);
    color: var(--c-text);
  }
  .page-faq .faq-index__dot {
    width: 8px;
    height: 8px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--c-data);
    transition: background var(--dur) var(--ease);
  }
  .page-faq .faq-index__link:hover .faq-index__dot {
    background: var(--c-yellow);
  }

  .page-faq .faq-section__head h2 {
    font-size: 1.688rem;
  }
  .page-faq .faq-section__head p {
    font-size: .938rem;
  }
}