.page-faq {
  --faq-ink-soft: rgba(244, 247, 251, .80);
  --faq-panel: rgba(11, 42, 74, .62);
  --faq-panel-deep: rgba(7, 26, 46, .80);
  position: relative;
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
  background:
    radial-gradient(1200px 620px at 6% 0%, rgba(127, 200, 248, .10), transparent 62%),
    radial-gradient(900px 540px at 98% 38%, rgba(255, 107, 74, .09), transparent 64%),
    linear-gradient(180deg, var(--sea-deep) 0%, var(--sea) 48%, var(--sea-deep) 100%);
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .45;
  background-image:
    repeating-linear-gradient(0deg, rgba(244, 247, 251, .035) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(244, 247, 251, .022) 0 1px, transparent 1px 4px);
}

.page-faq > * {
  position: relative;
  z-index: 1;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 22px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .breadcrumb__item a {
  color: var(--ice);
  text-decoration: none;
}

.page-faq .breadcrumb__item a:hover {
  color: var(--coral);
}

.page-faq .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--line-strong);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 40px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(7, 26, 46, .94), rgba(11, 42, 74, .55) 58%, rgba(7, 26, 46, .96));
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -150px;
  top: -140px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  pointer-events: none;
  border: 1px solid rgba(127, 200, 248, .18);
  box-shadow:
    inset 0 0 0 42px rgba(127, 200, 248, .045),
    inset 0 0 0 128px rgba(255, 107, 74, .05);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--neon);
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(27px, 6.4vw, 44px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-hero__title em {
  font-style: normal;
  color: var(--coral);
}

.page-faq .faq-hero__lede {
  margin: 0 0 24px;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__visual {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  overflow: hidden;
  background: var(--sea-deep);
  box-shadow: 0 30px 60px -40px rgba(0, 0, 0, .95);
}

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

/* ---------- 数字带 ---------- */
.page-faq .faq-facts {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(127, 200, 248, .08), rgba(61, 224, 160, .06) 52%, rgba(255, 107, 74, .10));
}

.page-faq .faq-facts__inner {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-faq .faq-fact {
  padding: 16px 10px 18px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-fact__value {
  display: block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.1;
  color: var(--ice);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-fact:nth-child(4) .faq-fact__value,
.page-faq .faq-fact:nth-child(5) .faq-fact__value {
  color: var(--coral);
}

.page-faq .faq-fact__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--mist);
}

/* ---------- 主体框架 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: 22px;
  padding-top: 40px;
  padding-bottom: 60px;
}

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

/* ---------- 索引 ---------- */
.page-faq .faq-index {
  display: none;
}

.page-faq .faq-index-mobile {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--faq-panel-deep);
}

.page-faq .faq-index-mobile__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--ice);
}

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

.page-faq .faq-index-mobile__summary::after {
  content: "▾";
  font-family: var(--font-num);
  color: var(--coral);
}

.page-faq .faq-index-mobile[open] .faq-index-mobile__summary::after {
  content: "▴";
}

.page-faq .faq-index-mobile .faq-index__list {
  padding: 0 8px 12px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--coral);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--faq-ink-soft);
  text-decoration: none;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  background: rgba(127, 200, 248, .10);
  border-left-color: var(--coral);
  color: var(--paper);
}

.page-faq .faq-index__num {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--ice);
}

.page-faq .faq-index__hint {
  margin: 14px 0 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-index__cta {
  width: 100%;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 28px;
  margin-bottom: 42px;
}

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

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-bottom: 16px;
  padding: 12px 14px;
  border-left: 4px solid var(--coral);
  border-radius: 0 8px 8px 0;
  background: linear-gradient(90deg, rgba(255, 107, 74, .16), rgba(255, 107, 74, 0) 72%);
}

.page-faq .faq-group:nth-child(even) .faq-group__head {
  border-left-color: var(--ice);
  background: linear-gradient(90deg, rgba(127, 200, 248, .16), rgba(127, 200, 248, 0) 72%);
}

.page-faq .faq-group__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .04em;
  color: var(--coral);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group:nth-child(even) .faq-group__num {
  color: var(--ice);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(20px, 3.8vw, 27px);
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-group__note {
  flex: 1 1 100%;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 8px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--faq-panel);
  transition: border-color .2s ease, background .2s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(127, 200, 248, .42);
  background: linear-gradient(180deg, rgba(11, 42, 74, .92), rgba(7, 26, 46, .92));
  box-shadow: 0 16px 34px -26px rgba(0, 0, 0, .95);
}

.page-faq .faq-item__q {
  position: relative;
  padding: 15px 46px 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
  box-shadow: inset 2px 0 0 transparent;
  transition: box-shadow .2s ease, color .2s ease;
}

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

.page-faq .faq-item__q:hover {
  color: var(--ice);
}

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

.page-faq .faq-item[open] .faq-item__q {
  box-shadow: inset 2px 0 0 var(--ice);
}

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 18px;
  line-height: 1;
  color: var(--ice);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
  color: var(--coral);
}

.page-faq .faq-item__a {
  margin: 0 14px 14px;
  padding: 12px 14px;
  border-left: 2px solid var(--ice);
  border-radius: 6px;
  background: rgba(127, 200, 248, .07);
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 247, 251, .85);
}

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

.page-faq .faq-item__a p + p {
  margin-top: 8px;
}

.page-faq .faq-item__a a {
  color: var(--ice);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--coral);
}

/* ---------- 手机端区块的图文分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 20px;
}

.page-faq .faq-split__figure {
  margin: 0 auto;
  width: 100%;
  max-width: 380px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  overflow: hidden;
  background: var(--faq-panel-deep);
}

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

.page-faq .faq-split__figure figcaption {
  padding: 10px 12px 12px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 联系分组 ---------- */
.page-faq .faq-group--contact .faq-group__head {
  border-left-color: var(--neon);
  background: linear-gradient(90deg, rgba(61, 224, 160, .16), rgba(61, 224, 160, 0) 72%);
}

.page-faq .faq-group--contact .faq-group__num {
  color: var(--neon);
}

.page-faq .faq-contact-card {
  margin-top: 18px;
  padding: 20px 18px 22px;
  border: 1px solid rgba(255, 107, 74, .36);
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(255, 107, 74, .14), rgba(11, 42, 74, .88) 62%);
}

.page-faq .faq-contact-card__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 19px;
  color: var(--paper);
}

.page-faq .faq-contact-card__note {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-contact-card__row {
  display: grid;
  gap: 5px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact-card__key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-faq .faq-contact-card__val {
  font-family: var(--font-num);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ice);
  word-break: break-all;
}

.page-faq .faq-contact-card__val--text {
  font-family: var(--font-body);
  font-size: 14.5px;
  word-break: break-word;
}

.page-faq .faq-contact-card__btn {
  margin-top: 18px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 32px 0 48px;
  }

  .page-faq .faq-facts__inner {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-fact {
    padding: 20px 14px 22px;
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-fact:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-faq .faq-group__note {
    flex: 0 1 auto;
    margin-left: auto;
    text-align: right;
  }

  .page-faq .faq-item__a {
    margin: 0 18px 18px;
    padding: 14px 18px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: start;
    gap: 28px;
  }

  .page-faq .faq-split__figure {
    margin: 0;
  }
}

/* ---------- 桌面：分屏首屏 + 右侧常驻索引 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 40px 0 56px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
    gap: 52px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) 268px;
    align-items: start;
    gap: 48px;
    padding-top: 52px;
    padding-bottom: 76px;
  }

  .page-faq .faq-main {
    grid-column: 1;
    grid-row: 1;
  }

  .page-faq .faq-side {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 32px;
  }

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

  .page-faq .faq-index {
    display: block;
    padding: 18px 16px 20px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--faq-panel-deep);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-index__list a {
    transition: none;
  }
}