.page-faq {
  --faq-idx-w: 272px;
  --faq-line: rgba(62, 107, 94, .9);
  background: var(--c-ink);
  color: var(--c-paper);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .breadcrumb {
  padding: 18px 0 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 58px) clamp(20px, 4vw, 54px);
  border: 1px solid var(--c-edge);
  border-radius: var(--r-lg);
  background:
    radial-gradient(130% 120% at 92% -10%, rgba(44, 230, 192, .18), transparent 55%),
    linear-gradient(158deg, var(--c-panel) 0%, var(--c-ink) 74%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -35%;
  right: -8%;
  width: 32%;
  height: 185%;
  transform: rotate(16deg);
  background: linear-gradient(180deg, rgba(44, 230, 192, .16), rgba(255, 122, 51, .09) 68%, transparent);
  pointer-events: none;
}

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

.page-faq .faq-hero .eyebrow {
  color: var(--c-cyan);
  letter-spacing: .12em;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 16px;
  max-width: 20ch;
  font-family: var(--f-display);
  font-size: clamp(30px, 5.6vw, 64px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.01em;
}

.page-faq .faq-hero__lede {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: rgba(244, 237, 223, .82);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__time {
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--c-mist);
  font-family: var(--f-num);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--c-edge);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}

.page-faq .faq-hero__facts .stat__num {
  display: block;
  font-family: var(--f-num);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  color: var(--c-cyan);
}

.page-faq .faq-hero__facts .stat__label {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-mist);
}

/* ---------- 左右分栏 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(30px, 5vw, 60px);
}

.page-faq .faq-aside {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--c-edge);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(20, 81, 63, .58), rgba(6, 35, 28, .35));
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-faq .faq-aside__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-mist);
}

.page-faq .idx__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
}

.page-faq .idx__list a {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 11px;
  border: 1px solid var(--c-edge);
  border-radius: var(--r-pill);
  color: var(--c-paper);
  font-size: 12px;
  letter-spacing: .03em;
  text-decoration: none;
  transition: background .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .idx__num {
  font-family: var(--f-num);
  font-size: 11px;
  color: var(--c-cyan);
}

.page-faq .idx__list a:hover,
.page-faq .idx__list a:focus-visible {
  background: rgba(44, 230, 192, .12);
  border-color: var(--c-cyan);
}

.page-faq .faq-aside__cta {
  display: inline-block;
  margin-top: 16px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 51, .45);
  padding-bottom: 2px;
}

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

/* ---------- 筛选 ---------- */
.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--c-edge);
}

.page-faq .filter-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--c-edge);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--c-paper);
  font: inherit;
  font-size: 13px;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .filter-btn:hover {
  border-color: var(--c-cyan);
}

.page-faq .filter-btn[aria-pressed="true"],
.page-faq .filter-btn.is-active {
  background: var(--c-orange);
  border-color: var(--c-orange);
  color: var(--c-ink);
  font-weight: 600;
}

.page-faq .filter-btn__n {
  margin-left: 7px;
  font-family: var(--f-num);
  font-size: 11px;
  opacity: .85;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  --grp: var(--c-cyan);
  padding-top: clamp(28px, 4vw, 44px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--c-edge);
}

.page-faq .faq-group--update { --grp: var(--c-orange); }
.page-faq .faq-group--account { --grp: var(--c-cyan); }
.page-faq .faq-group--source { --grp: var(--c-mist); }

.page-faq .faq-group__head {
  max-width: 68ch;
}

.page-faq .faq-group__head .eyebrow {
  margin: 0;
  font-family: var(--f-num);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--grp);
}

.page-faq .faq-group__head h2 {
  margin: 10px 0 12px;
  font-family: var(--f-display);
  font-size: clamp(22px, 3.1vw, 36px);
  line-height: 1.22;
  letter-spacing: -.005em;
  color: var(--c-paper);
}

.page-faq .faq-group__intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(244, 237, 223, .74);
}

/* ---------- 对比信息块 ---------- */
.page-faq .cmp {
  display: grid;
  gap: 22px;
  margin-top: 24px;
  padding: clamp(20px, 3vw, 34px);
  border-radius: var(--r-lg);
  background: var(--c-paper);
  color: var(--c-brown);
}

.page-faq .cmp__col h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--f-display);
  font-size: 19px;
  color: var(--c-brown);
}

.page-faq .cmp__col h3::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #12b394;
  box-shadow: 0 0 0 4px rgba(44, 230, 192, .28);
}

.page-faq .cmp__col--off h3::before {
  background: #e35f18;
  box-shadow: 0 0 0 4px rgba(255, 122, 51, .26);
}

.page-faq .cmp__col ul {
  margin: 0;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.9;
  color: #3b2c20;
}

.page-faq .cmp__col li + li {
  margin-top: 6px;
}

.page-faq .cmp__col strong {
  font-family: var(--f-num);
  font-weight: 700;
  color: #1c130c;
}

/* ---------- 图片 ---------- */
.page-faq .media {
  margin: 24px 0 0;
  overflow: hidden;
  border: 1px solid var(--c-edge);
  border-radius: var(--r-md);
  background: var(--c-glass);
}

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

.page-faq .media__caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mist);
  background: rgba(6, 35, 28, .72);
}

.page-faq .faq-split {
  display: grid;
  gap: 22px;
  margin-top: 22px;
}

.page-faq .faq-split .media {
  margin-top: 0;
}

/* ---------- 答卡 ---------- */
.page-faq .qa-list {
  margin-top: 22px;
  border-bottom: 1px solid var(--c-edge);
}

.page-faq .qa {
  position: relative;
  margin: 0;
  padding-left: 18px;
  border-top: 1px solid var(--c-edge);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: linear-gradient(90deg, rgba(20, 81, 63, .34), rgba(6, 35, 28, 0) 62%);
  transition: background .28s var(--ease);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: var(--r-pill);
  background: var(--grp, var(--c-cyan));
  opacity: .85;
  transition: opacity .2s var(--ease);
}

.page-faq .qa:target {
  background: linear-gradient(90deg, rgba(44, 230, 192, .18), rgba(6, 35, 28, 0) 64%);
}

.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 46px 18px 14px;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-paper);
}

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

.page-faq .qa__num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--f-num);
  font-size: 13px;
  color: var(--grp, var(--c-cyan));
}

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

.page-faq .qa__sign {
  position: absolute;
  top: 16px;
  right: 12px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--c-edge);
  border-radius: 50%;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qa__sign::before {
  content: "+";
  font-family: var(--f-num);
  font-size: 13px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-faq .qa[open] .qa__sign {
  border-color: var(--c-cyan);
  background: rgba(44, 230, 192, .12);
}

.page-faq .qa[open] .qa__sign::before {
  content: "–";
}

.page-faq .qa__a {
  padding: 0 30px 22px 14px;
}

.page-faq .qa__a p {
  max-width: 74ch;
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(244, 237, 223, .78);
}

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

.page-faq .qa__a mark {
  background: transparent;
  color: var(--c-cyan);
  font-weight: 600;
}

.page-faq .qa__more {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 6px;
}

.page-faq .qa__more a {
  font-size: 13px;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 230, 192, .4);
  padding-bottom: 2px;
}

.page-faq .qa__more a:hover,
.page-faq .qa__more a:focus-visible {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 收束到联系 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: 26px;
  margin-top: clamp(36px, 6vw, 68px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--c-edge);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 110% at 6% 0%, rgba(255, 122, 51, .14), transparent 58%),
    linear-gradient(150deg, var(--c-panel), var(--c-ink) 80%);
}

.page-faq .faq-help .eyebrow {
  margin: 0 0 8px;
  font-family: var(--f-num);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-orange);
}

.page-faq .faq-help h2 {
  margin: 0 0 12px;
  font-family: var(--f-display);
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.24;
}

.page-faq .faq-help p {
  max-width: 58ch;
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(244, 237, 223, .78);
}

.page-faq .faq-help__note {
  font-size: 13px;
  color: var(--c-mist);
}

.page-faq .contact-rows {
  display: grid;
  gap: 10px;
}

.page-faq .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 12px 14px;
  border: 1px solid var(--c-edge);
  border-radius: var(--r-sm);
  background: rgba(20, 81, 63, .35);
}

.page-faq .contact-row__key {
  flex: 0 0 76px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-mist);
}

.page-faq .contact-row__val {
  font-family: var(--f-num);
  font-size: 14px;
  color: var(--c-paper);
  word-break: break-all;
}

.page-faq .contact-row .copy-btn {
  margin-left: auto;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .cmp {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 30px;
    align-items: start;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    align-items: center;
    gap: 40px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-idx-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--header-h) + 18px);
    max-height: calc(100vh - var(--header-h) - 40px);
    overflow: auto;
  }

  .page-faq .idx__list {
    display: block;
  }

  .page-faq .idx__list li + li {
    margin-top: 2px;
  }

  .page-faq .idx__list a {
    padding: 8px 10px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    font-size: 13px;
  }

  .page-faq .idx__list a:hover,
  .page-faq .idx__list a:focus-visible {
    background: rgba(44, 230, 192, .1);
    border-left-color: var(--c-cyan);
    border-color: transparent;
    border-left-color: var(--c-cyan);
  }

  .page-faq .qa__a {
    padding-right: 64px;
  }
}