.page-faq {
  padding-bottom: clamp(64px, 9vw, 120px);
}

.page-faq .breadcrumbs {
  margin-top: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(32px, 5vw, 64px) 0 clamp(28px, 4vw, 48px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -10% -20% auto -20%;
  height: 140%;
  background:
    radial-gradient(70% 55% at 86% 6%, rgba(56, 232, 208, 0.16), transparent 62%),
    radial-gradient(60% 50% at 4% 96%, rgba(139, 107, 255, 0.13), transparent 66%),
    linear-gradient(180deg, rgba(11, 18, 32, 0.75) 0%, rgba(5, 8, 15, 0) 78%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: -8%;
  width: 46%;
  height: 100%;
  border-left: 1px solid var(--line);
  transform: skewX(-14deg);
  transform-origin: top right;
  opacity: 0.65;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4.5vw, 52px);
}

.page-faq .faq-hero__title {
  margin: 16px 0 18px;
  font-size: clamp(30px, 6vw, 58px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--hi);
  max-width: 18ch;
}

.page-faq .faq-hero__text {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mid);
}

.page-faq .faq-hero__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-hero__meta > div {
  padding: 16px 18px;
  background: rgba(11, 18, 32, 0.86);
}

.page-faq .faq-hero__meta dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--dim);
}

.page-faq .faq-hero__meta dd {
  margin: 10px 0 0;
  font-family: var(--font-cond);
  font-size: 21px;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--hi);
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.7fr);
    align-items: end;
  }

  .page-faq .faq-hero__meta dd {
    font-size: 24px;
  }
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-body {
  display: grid;
  gap: clamp(32px, 5vw, 52px);
  margin-top: clamp(28px, 4.5vw, 56px);
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: clamp(44px, 5vw, 80px);
    align-items: start;
  }
}

/* ---------- 左侧索引 ---------- */

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

.page-faq .faq-index__list {
  display: flex;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  white-space: nowrap;
  color: var(--mid);
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--hi);
  border-color: rgba(56, 232, 208, 0.55);
  background: rgba(56, 232, 208, 0.06);
}

.page-faq .faq-index__num {
  font-family: var(--font-cond);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-index__label {
  letter-spacing: 0.01em;
}

@media (min-width: 1024px) {
  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index__list {
    display: block;
    margin-top: 16px;
    padding: 0;
    overflow: visible;
    border-top: 1px solid var(--line);
  }

  .page-faq .faq-index__list > li {
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-index__link {
    position: relative;
    padding: 15px 14px 15px 16px;
    border: 0;
    border-radius: 0;
    font-size: 15px;
    white-space: normal;
  }

  .page-faq .faq-index__link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 14px;
    bottom: 14px;
    width: 2px;
    background: linear-gradient(180deg, var(--cyan), var(--violet));
    opacity: 0;
    transition: opacity 0.3s var(--ease);
  }

  .page-faq .faq-index__link:hover::before,
  .page-faq .faq-index__link:focus-visible::before {
    opacity: 1;
  }

  .page-faq .faq-index__label {
    display: inline-block;
    transition: transform 0.3s var(--ease);
  }

  .page-faq .faq-index__link:hover .faq-index__label,
  .page-faq .faq-index__link:focus-visible .faq-index__label {
    transform: translateX(4px);
  }
}

/* ---------- 分组 ---------- */

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

.page-faq .faq-group {
  padding-top: clamp(36px, 5vw, 64px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(44px, 6vw, 84px);
}

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

.page-faq .faq-group__head .index {
  color: var(--dim);
}

.page-faq .faq-group__head h2 {
  margin: 12px 0 14px;
  font-size: clamp(23px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--hi);
  max-width: 22ch;
}

.page-faq .faq-group__intro {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mid);
}

.page-faq .faq-group__split {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

@media (min-width: 900px) {
  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure,
.page-faq .faq-banner {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--rail);
}

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

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

.page-faq .faq-banner {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .faq-banner img {
  aspect-ratio: 16 / 7;
}

.page-faq .faq-figure::after,
.page-faq .faq-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(5, 8, 15, 0) 40%, rgba(5, 8, 15, 0.72) 100%);
  pointer-events: none;
}

/* ---------- 问答列表 ---------- */

.page-faq .faq-list {
  margin-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(16px, 2.2vw, 22px) 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 1.7vw, 19px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--hi);
  transition: color 0.25s var(--ease);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-item__marker {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 0.34em;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 0.25s var(--ease);
}

.page-faq .faq-item__marker::before,
.page-faq .faq-item__marker::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.page-faq .faq-item__marker::before {
  left: 4px;
  right: 4px;
  top: 50%;
  height: 1px;
}

.page-faq .faq-item__marker::after {
  top: 4px;
  bottom: 4px;
  left: 50%;
  width: 1px;
}

.page-faq .faq-item[open] .faq-item__marker {
  border-color: rgba(56, 232, 208, 0.6);
}

.page-faq .faq-item[open] .faq-item__marker::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 2px 0 clamp(20px, 3vw, 30px) 32px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mid);
  animation: faq-answer-in 0.36s var(--ease) both;
}

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

.page-faq .faq-item__a p {
  margin: 0 0 14px;
  max-width: 66ch;
}

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

.page-faq .faq-item__conclusion {
  position: relative;
  padding: 14px 18px 14px 20px;
  background: var(--panel);
  border-left: 2px solid var(--cyan);
  color: var(--hi);
  font-size: 16px;
  line-height: 1.72;
}

.page-faq .faq-note {
  position: relative;
  padding: 12px 16px 12px 40px;
  border: 1px solid rgba(255, 194, 75, 0.34);
  background: rgba(255, 194, 75, 0.06);
  color: var(--mid);
  font-size: 14px;
  line-height: 1.72;
}

.page-faq .faq-note::before {
  content: "!";
  position: absolute;
  left: 14px;
  top: 14px;
  display: grid;
  place-items: center;
  width: 15px;
  height: 15px;
  border: 1px solid rgba(255, 194, 75, 0.55);
  border-radius: 50%;
  font-family: var(--font-cond);
  font-size: 11px;
  line-height: 1;
  color: var(--warn);
}

/* ---------- 步骤列表 ---------- */

.page-faq .faq-steps {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding: 0 0 20px 42px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mid);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-family: var(--font-cond);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 4px;
  border-left: 1px dashed var(--line);
}

.page-faq .faq-steps li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-steps li:last-child::after {
  display: none;
}

/* ---------- 联系信息 ---------- */

.page-faq .faq-contact {
  display: grid;
  gap: 1px;
  margin: clamp(22px, 3vw, 32px) 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: rgba(11, 18, 32, 0.86);
}

.page-faq .faq-contact__row dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--dim);
}

.page-faq .faq-contact__row dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.68;
  color: var(--hi);
  word-break: break-word;
}

@media (min-width: 760px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact__row--wide {
    grid-column: 1 / -1;
  }
}

/* ---------- 结尾入口 ---------- */

.page-faq .faq-next {
  margin-top: clamp(64px, 9vw, 116px);
  padding-top: clamp(40px, 6vw, 68px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-next h2 {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--hi);
}

.page-faq .faq-next__grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-next__card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 148px;
  padding: 22px 20px 24px;
  background: var(--rail);
  color: var(--hi);
  text-decoration: none;
  transition: background 0.3s var(--ease);
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  background: var(--panel);
}

.page-faq .faq-next__card .index {
  color: var(--dim);
}

.page-faq .faq-next__title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.62;
}

.page-faq .faq-next__arrow {
  margin-top: auto;
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 0.3s var(--ease);
}

.page-faq .faq-next__card:hover .faq-next__arrow,
.page-faq .faq-next__card:focus-visible .faq-next__arrow {
  transform: translateX(5px);
}

@media (min-width: 720px) {
  .page-faq .faq-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 动效兼容 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__marker::before,
  .page-faq .faq-item__marker::after,
  .page-faq .faq-index__link,
  .page-faq .faq-index__label,
  .page-faq .faq-next__arrow,
  .page-faq .faq-next__card {
    transition: none;
  }

  .page-faq .faq-next__card:hover .faq-next__arrow,
  .page-faq .faq-next__card:focus-visible .faq-next__arrow,
  .page-faq .faq-index__link:hover .faq-index__label,
  .page-faq .faq-index__link:focus-visible .faq-index__label {
    transform: none;
  }
}