.page-faq {
  --faq-soft: rgba(57, 242, 196, 0.10);
  --faq-well: rgba(6, 19, 16, 0.55);
  --faq-card: rgba(18, 48, 42, 0.58);
  --faq-card-open: rgba(18, 48, 42, 0.90);
  --faq-gap: clamp(16px, 3vw, 30px);
  padding-bottom: clamp(44px, 8vw, 96px);
  overflow-wrap: break-word;
}

.page-faq .crumbs__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: clamp(14px, 3vw, 26px) 0 0;
  font-size: 13px;
  color: var(--silver);
}

.page-faq .crumbs__item + .crumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .crumbs__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease);
}

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

.page-faq .crumbs__current {
  color: var(--silver);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 5vw, 46px) 0 clamp(18px, 3vw, 30px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 6.2vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
  max-width: 17em;
  color: var(--white);
  text-shadow: 0 0 20px rgba(57, 242, 196, 0.20);
}

.page-faq .hl {
  color: var(--cyan);
  font-style: normal;
  text-shadow: 0 0 22px rgba(57, 242, 196, 0.42);
}

.page-faq .faq-hero__lede {
  margin-top: clamp(14px, 2.4vw, 20px);
  max-width: 44em;
  color: var(--silver);
}

/* ---------- 切换面板 ---------- */
.page-faq .faq-switch {
  margin-top: clamp(22px, 4vw, 38px);
  padding: clamp(18px, 3.6vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(152deg, var(--faq-soft), rgba(18, 48, 42, 0.92) 48%, var(--panel));
  box-shadow: var(--shadow-panel);
  display: grid;
  gap: clamp(16px, 2.6vw, 26px);
}

.page-faq .faq-switch__head h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.24;
  color: var(--white);
}

.page-faq .faq-switch__head p {
  margin: 10px 0 0;
  color: var(--silver);
  max-width: 34em;
}

.page-faq .switch-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .switch-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--faq-well);
  color: var(--silver);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .switch-steps .mono {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding-top: 4px;
}

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

.page-faq .faq-switch__foot .btn {
  display: inline-block;
}

/* ---------- 搜索 ---------- */
.page-faq .qa-search {
  margin-top: clamp(24px, 4vw, 40px);
  padding: 16px clamp(16px, 2.4vw, 22px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: var(--faq-card);
  display: grid;
  gap: 8px;
}

.page-faq .qa-search input {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(6, 19, 16, 0.7);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 15px;
}

.page-faq .qa-search input::placeholder {
  color: rgba(201, 211, 214, 0.6);
}

.page-faq .qa-search input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-color: var(--cyan);
}

.page-faq .search-band__hint {
  margin: 0;
  font-size: 13px;
  color: var(--silver);
}

/* ---------- 主结构 ---------- */
.page-faq .faq-shell {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-shell > * {
  min-width: 0;
}

.page-faq .faq-toc {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--faq-well);
  padding: 14px 14px 16px;
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  padding-left: 8px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--silver);
}

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

.page-faq .faq-toc__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: 0 10px 10px 0;
  color: var(--silver);
  text-decoration: none;
  font-size: 15px;
  transition: color var(--t) var(--ease), background var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-faq .faq-toc__idx {
  font-size: 12px;
  color: var(--cyan-dim);
  letter-spacing: 0.08em;
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--white);
  background: var(--faq-soft);
  border-left-color: var(--cyan);
}

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

/* ---------- 问答分组 ---------- */
.page-faq .qa-group {
  scroll-margin-top: 110px;
  margin-bottom: clamp(26px, 4vw, 44px);
}

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

.page-faq .qa-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-faq .qa-group__no {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .qa-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3.2vw, 27px);
  line-height: 1.3;
  color: var(--white);
}

.page-faq .qa-group:target .qa-group__title {
  color: var(--cyan);
}

.page-faq .qa-group__media {
  margin: 0 0 16px;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--faq-card);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.page-faq .qa:last-of-type {
  margin-bottom: 0;
}

.page-faq .qa[open] {
  border-color: rgba(57, 242, 196, 0.48);
  background: var(--faq-card-open);
  box-shadow: inset 3px 0 0 var(--cyan), var(--shadow-panel);
}

.page-faq .qa__q {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px clamp(14px, 2.4vw, 20px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--white);
  transition: color var(--t) var(--ease);
}

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

.page-faq .qa__q:hover {
  color: var(--cyan);
}

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

.page-faq .qa__q-text {
  min-width: 0;
}

.page-faq .qa__icon {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}

.page-faq .qa__icon::before {
  left: 2px;
  right: 2px;
  top: 9px;
  height: 2px;
}

.page-faq .qa__icon::after {
  top: 2px;
  bottom: 2px;
  left: 9px;
  width: 2px;
}

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

.page-faq .qa__a {
  padding: 0 clamp(14px, 2.4vw, 20px) 18px;
  border-top: 1px solid rgba(30, 74, 64, 0.7);
  margin-top: 0;
  padding-top: 14px;
}

.page-faq .qa__lead {
  margin: 0;
  color: var(--white);
  font-size: 15px;
  line-height: 1.8;
  border-left: 2px solid var(--cyan-dim);
  padding-left: 12px;
}

.page-faq .qa__steps {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .qa__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 11px;
  align-items: start;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .qa__step-no {
  width: 21px;
  height: 21px;
  margin-top: 3px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background: var(--cyan);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .qa__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .qa__list li {
  position: relative;
  padding-left: 18px;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .qa__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
}

.page-faq .qa__note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-faq .qa__a a,
.page-faq .qa__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 242, 196, 0.45);
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease);
}

.page-faq .qa__a a:hover,
.page-faq .qa__note a:hover,
.page-faq .qa__a a:focus-visible,
.page-faq .qa__note a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-faq .term {
  border-bottom: 1px dashed var(--cyan-dim);
  cursor: help;
  color: var(--white);
}

/* ---------- 求助卡片 ---------- */
.page-faq .faq-help {
  margin-top: clamp(30px, 5vw, 52px);
  padding: clamp(18px, 3.6vw, 36px);
  border: 1px solid rgba(255, 138, 61, 0.55);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(255, 138, 61, 0.12), rgba(18, 48, 42, 0.94));
  box-shadow: var(--shadow-panel);
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-help__head h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.26;
  color: var(--white);
}

.page-faq .faq-help__head > p {
  margin: 12px 0 0;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.8;
  max-width: 40em;
}

.page-faq .contact-list {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  display: grid;
  gap: 8px;
}

.page-faq .contact-list__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--faq-well);
}

.page-faq .contact-list__k {
  font-size: 13px;
  color: var(--silver);
  letter-spacing: 0.06em;
}

.page-faq .contact-list__v {
  margin: 0;
  color: var(--white);
  font-size: 15px;
  overflow-wrap: anywhere;
}

.page-faq .contact-list__v.mono {
  color: var(--cyan);
}

.page-faq .faq-help__foot {
  margin: clamp(16px, 2.6vw, 22px) 0 0;
}

.page-faq .faq-help__media {
  margin: 0;
  align-self: stretch;
}

/* ---------- 响应式 ---------- */
@media (min-width: 880px) {
  .page-faq .faq-switch {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
  }

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

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.75fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(198px, 248px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 96px;
    max-height: calc(100vh - 130px);
    overflow-y: auto;
  }

  .page-faq .qa__q {
    font-size: 17px;
  }
}

@media (max-width: 480px) {
  .page-faq .contact-list__row,
  .page-faq .switch-steps li {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-faq .switch-steps .mono {
    padding-top: 0;
  }

  .page-faq .faq-toc__link {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__icon::before,
  .page-faq .qa__icon::after,
  .page-faq .qa,
  .page-faq .faq-toc__link {
    transition: none;
  }
}