/* ================= 答疑中心 page-faq ================= */

.page-faq {
  --faq-rail-w: 236px;
  --faq-card-bg: rgba(10, 36, 56, .72);
  --faq-card-bg-open: rgba(12, 42, 64, .94);
  --faq-radius: 2px;
  position: relative;
  padding-bottom: clamp(40px, 7vw, 88px);
  color: var(--glass);
  background: linear-gradient(180deg, var(--abyss) 0%, var(--river-deep) 58%, var(--abyss) 100%);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--line-strong);
}

.page-faq .breadcrumbs__item a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.page-faq .breadcrumbs__item a:hover,
.page-faq .breadcrumbs__item a:focus-visible {
  color: var(--teal-bright);
  border-bottom-color: currentColor;
}

.page-faq .breadcrumbs__item[aria-current="page"] {
  color: var(--scale);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4vw, 46px) 0 clamp(34px, 5vw, 62px);
  border-bottom: 1px solid var(--line-strong);
  background:
    radial-gradient(110% 88% at 88% -6%, rgba(20, 214, 196, .17), transparent 62%),
    radial-gradient(78% 74% at 2% 104%, rgba(255, 107, 74, .12), transparent 60%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  align-items: center;
}

.page-faq .faq-hero__text .breadcrumbs {
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(29px, 5.4vw, 46px);
  line-height: 1.15;
  letter-spacing: .005em;
  color: var(--glass);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--scale);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border: 2px solid var(--scale);
  border-radius: var(--faq-radius);
  box-shadow: var(--shadow-hard);
  background: var(--river);
  overflow: hidden;
  aspect-ratio: 7 / 4;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 62%;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: clamp(40px, 6vw, 78px) 0 0;
}

.page-faq .faq-body__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

/* ---------- 左侧索引轨道 ---------- */
.page-faq .faq-rail__inner {
  padding: 16px 14px 18px;
  border: 2px solid var(--line-strong);
  border-radius: var(--faq-radius);
  background: var(--panel-soft);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-faq .faq-rail__list {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail__link {
  position: relative;
  display: block;
  padding: 9px 10px 9px 16px;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--scale);
  text-decoration: none;
  transition: color .18s ease, background-color .18s ease;
}

.page-faq .faq-rail__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: var(--line-strong);
  transition: width .18s ease, background-color .18s ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--teal-bright);
  background: rgba(20, 214, 196, .08);
}

.page-faq .faq-rail__link:hover::before,
.page-faq .faq-rail__link:focus-visible::before {
  width: 7px;
  background: var(--teal);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(48px, 6.4vw, 88px);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-bottom: 14px;
  margin-bottom: clamp(20px, 3vw, 28px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 29px);
  line-height: 1.3;
  color: var(--glass);
}

/* ---------- 标签 ---------- */
.page-faq .tag {
  padding: 5px 10px 4px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: .08em;
  border: 1px solid currentColor;
  border-radius: var(--faq-radius);
}

.page-faq .tag--teal {
  color: var(--teal);
  background: rgba(20, 214, 196, .1);
}

.page-faq .tag--gold {
  color: var(--gold);
  background: rgba(243, 197, 103, .1);
}

.page-faq .tag--coral {
  color: var(--coral-glow);
  background: rgba(255, 107, 74, .1);
}

/* ---------- 分组配图 ---------- */
.page-faq .faq-group__figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
  border: 2px solid var(--line-strong);
  border-radius: var(--faq-radius);
  box-shadow: var(--shadow-hard);
  background: var(--river);
  overflow: hidden;
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center 68%;
}

/* ---------- 问答卡组 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}

.page-faq .qa-card {
  border: 2px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--faq-card-bg);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, .42);
  transition: border-color .2s ease, background-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.page-faq .qa-card + .qa-card {
  border-top-style: dashed;
  border-top-color: var(--line-strong);
}

.page-faq .qa-card:hover {
  border-color: var(--line-strong);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, .52);
  transform: translateY(-2px);
}

.page-faq .qa-card[open] {
  border-style: solid;
  border-color: var(--line-strong);
  border-left-color: var(--teal);
  background: var(--faq-card-bg-open);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, .52);
}

.page-faq .qa-card:focus-within {
  outline: 2px solid var(--teal-bright);
  outline-offset: 2px;
}

.page-faq .qa-card__summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 15px 46px 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--glass);
  transition: color .18s ease;
}

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

.page-faq .qa-card__summary::marker {
  content: "";
}

.page-faq .qa-card__summary:hover {
  color: var(--teal-bright);
}

.page-faq .qa-card__summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 21px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(45deg);
  transition: transform .24s ease, border-color .24s ease;
}

.page-faq .qa-card[open] .qa-card__summary::after {
  transform: rotate(225deg);
  border-color: var(--coral);
}

.page-faq .qa-card__label {
  flex: none;
  margin-top: 3px;
  padding: 2px 6px 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .05em;
  color: var(--mist);
  border: 1px solid var(--line-strong);
  border-radius: var(--faq-radius);
  background: rgba(199, 214, 224, .06);
  transition: color .2s ease, background-color .2s ease, border-color .2s ease;
}

.page-faq .qa-card[open] .qa-card__label {
  color: var(--abyss);
  background: var(--coral);
  border-color: var(--coral);
}

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

.page-faq .qa-card__body {
  padding: 14px 18px 20px;
  border-top: 1px solid var(--line);
}

.page-faq .qa-card[open] .qa-card__body {
  animation: faq-card-in .3s ease both;
}

@keyframes faq-card-in {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .qa-card__body p {
  margin: 0 0 1em;
  font-size: 16px;
  line-height: 1.82;
  color: var(--scale);
}

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

.page-faq .num {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.06em;
  letter-spacing: -.02em;
  color: var(--gold);
}

.page-faq .privacy-inline {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 214, 196, .42);
  transition: color .18s ease, border-color .18s ease;
}

.page-faq .privacy-inline:hover,
.page-faq .privacy-inline:focus-visible {
  color: var(--teal-bright);
  border-bottom-color: var(--teal-bright);
}

/* ---------- 反馈按钮 ---------- */
.page-faq .qa-card__feedback {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-faq .qa-card__feedback-label {
  font-size: 13px;
  color: var(--mist);
}

.page-faq .qa-card__vote {
  padding: 4px 11px;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--faq-radius);
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}

.page-faq .qa-card__vote:hover {
  color: var(--teal-bright);
  border-color: var(--teal);
  background: rgba(20, 214, 196, .08);
}

.page-faq .qa-card__vote:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

/* ---------- 底部三步路径 ---------- */
.page-faq .faq-path {
  margin-top: clamp(56px, 8vw, 106px);
  padding: clamp(38px, 5vw, 70px) 0 clamp(46px, 6vw, 82px);
  border-top: 1px solid var(--line-strong);
  background:
    radial-gradient(100% 80% at 78% 0%, rgba(20, 214, 196, .1), transparent 62%),
    linear-gradient(180deg, rgba(7, 27, 44, .38), rgba(4, 18, 31, .86));
}

.page-faq .faq-path__head {
  max-width: 62ch;
}

.page-faq .faq-path__title {
  margin: 12px 0 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.28;
  color: var(--glass);
}

.page-faq .faq-path__lead {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--scale);
}

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 22px 20px 24px;
  border: 2px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}

.page-faq .faq-step:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-step__num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 26px;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--gold);
}

.page-faq .faq-step__title {
  margin: 0 0 9px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.5;
  color: var(--glass);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--scale);
}

/* ---------- 底部行动区 ---------- */
.page-faq .faq-path__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-faq .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 22px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--faq-radius);
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
}

.page-faq .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard);
}

.page-faq .btn:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.page-faq .faq-path__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-shortcuts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  margin-top: clamp(24px, 3.4vw, 36px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px dashed var(--line);
}

.page-faq .faq-shortcut {
  display: block;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--scale);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: rgba(8, 28, 45, .5);
  transition: color .18s ease, border-color .18s ease, background-color .18s ease, transform .18s ease;
}

.page-faq .faq-shortcut:hover,
.page-faq .faq-shortcut:focus-visible {
  color: var(--teal-bright);
  border-color: var(--teal);
  background: rgba(20, 214, 196, .08);
  transform: translateY(-2px);
}

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

/* ================= 响应式 ================= */

@media (min-width: 620px) {
  .page-faq .qa-card__body {
    padding-left: 18px;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-shortcuts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 24px;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-step + .faq-step::before {
    content: "";
    position: absolute;
    left: -11px;
    top: 50%;
    width: 14px;
    height: 14px;
    margin-top: -7px;
    border-top: 3px solid var(--coral);
    border-right: 3px solid var(--coral);
    transform: rotate(45deg);
    z-index: 1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(34px, 4.4vw, 68px);
  }

  .page-faq .faq-hero__media {
    transform: translateY(clamp(0px, 2vw, 22px));
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body__inner {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(34px, 4.4vw, 72px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }
}

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

/* ================= 可访问性 ================= */

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-card,
  .page-faq .faq-step,
  .page-faq .faq-shortcut,
  .page-faq .btn,
  .page-faq .qa-card__summary::after {
    transition: none;
  }

  .page-faq .qa-card:hover,
  .page-faq .faq-step:hover,
  .page-faq .faq-shortcut:hover,
  .page-faq .btn:hover,
  .page-faq .faq-hero__media {
    transform: none;
  }

  .page-faq .qa-card[open] .qa-card__body {
    animation: none;
  }
}
<<<END>>>