.page-faq {
  --faq-gap: clamp(32px, 5vw, 68px);
  --faq-pad: clamp(18px, 3vw, 28px);
  display: block;
  padding-bottom: clamp(48px, 8vw, 104px);
}

/* ---------- 页头 ---------- */
.page-faq .faq-head {
  position: relative;
  padding-top: clamp(22px, 4vw, 44px);
}

.page-faq .faq-head::before {
  content: "";
  position: absolute;
  inset: -90px -20% auto -20%;
  height: 440px;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(55% 100% at 18% 0%, rgba(122, 92, 255, .26), transparent 68%),
    radial-gradient(46% 88% at 88% 6%, rgba(34, 230, 211, .18), transparent 66%);
}

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

.page-faq .faq-head__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.4vw, 34px);
  margin-top: clamp(18px, 3vw, 36px);
}

.page-faq .faq-head h1 {
  margin: 10px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--paper);
  max-width: 15ch;
}

.page-faq .faq-head .lede {
  margin: 16px 0 0;
  max-width: 58ch;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-head__note {
  margin: 14px 0 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.75;
}

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

.page-faq .faq-head__side {
  border: var(--line);
  background: linear-gradient(158deg, rgba(14, 20, 32, .96), rgba(26, 16, 48, .92));
  box-shadow: var(--shadow-panel);
  padding: var(--faq-pad);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-head__side-k {
  margin: 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-faq .faq-head__side-v {
  margin: 0;
  font-size: clamp(34px, 6vw, 46px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
  text-shadow: 0 0 26px rgba(34, 230, 211, .35);
}

.page-faq .faq-head__side-list {
  list-style: none;
  margin: 6px 0 4px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-head__side-list li {
  position: relative;
  padding-left: 16px;
  color: var(--mist);
  font-size: 13.5px;
  line-height: 1.65;
}

.page-faq .faq-head__side-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 1px;
  background: var(--violet);
}

.page-faq .faq-head__side .btn {
  align-self: flex-start;
  margin-top: 4px;
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filters {
  margin-top: clamp(24px, 4vw, 42px);
  padding-top: 16px;
  border-top: 1px solid var(--steel);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.page-faq .faq-filters__label {
  margin: 0 4px 0 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-faq .faq-filters__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--steel);
  background: rgba(14, 20, 32, .68);
  color: var(--mist);
  font-size: 13.5px;
  line-height: 1;
  text-decoration: none;
  transition: color .16s var(--ease), background .16s var(--ease),
              border-color .16s var(--ease), transform .16s var(--ease);
}

.page-faq .faq-chip__idx {
  font-size: 10.5px;
  letter-spacing: .06em;
  color: var(--violet);
  transition: color .16s var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--paper-ink);
  background: var(--cyan);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-chip:hover .faq-chip__idx,
.page-faq .faq-chip:focus-visible .faq-chip__idx {
  color: rgba(20, 22, 28, .7);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  position: relative;
  margin-top: var(--faq-gap);
  padding-top: var(--faq-gap);
  border-top: 1px solid var(--steel);
  scroll-margin-top: calc(var(--bar-h) + 16px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: clamp(18px, 2.8vw, 30px);
}

.page-faq .faq-group__idx {
  font-size: clamp(26px, 4.4vw, 44px);
  line-height: .95;
  color: var(--violet);
  opacity: .6;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(21px, 3.5vw, 33px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-group__desc {
  margin: 8px 0 0;
  max-width: 56ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.72;
}

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

.page-faq .faq-group__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  position: relative;
  border: 1px solid var(--steel);
  background: linear-gradient(180deg, rgba(14, 20, 32, .96), rgba(7, 8, 15, .96));
  overflow: hidden;
  transition: border-color .2s var(--ease);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--steel);
  transition: width .2s var(--ease), background .2s var(--ease);
}

.page-faq .qa[open]::before {
  width: 6px;
  background: var(--cyan);
}

.page-faq .qa:hover {
  border-color: rgba(34, 230, 211, .35);
}

.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 11px;
  padding: 15px 46px 15px 20px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.55;
  transition: color .16s var(--ease), background .16s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "";
  position: absolute;
  right: 21px;
  top: calc(50% - 4px);
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(-135deg);
  border-color: var(--alert);
}

.page-faq .qa[open] .qa__q {
  background: rgba(34, 230, 211, .05);
}

.page-faq .qa__num {
  flex: 0 0 auto;
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--violet);
  padding-top: 3px;
}

.page-faq .qa__body {
  margin: 0 20px;
  padding: 16px 0 22px;
  border-top: 1px dashed var(--steel);
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .qa__prob {
  margin: 0 0 16px;
  padding: 10px 14px;
  background: rgba(255, 75, 43, .08);
  border-left: 2px solid var(--alert);
  color: rgba(244, 241, 232, .92);
  font-size: 14px;
  line-height: 1.72;
}

.page-faq .qa__step-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--cyan);
}

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

.page-faq .qa__steps > li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 34px;
  line-height: 1.78;
}

.page-faq .qa__steps > li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .qa__steps > li::after {
  content: "";
  position: absolute;
  left: 10px;
  top: 27px;
  bottom: -12px;
  width: 1px;
  background: rgba(34, 230, 211, .34);
}

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

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

.page-faq .qa__confirm {
  margin: 18px 0 0;
  padding: 10px 14px;
  border: 1px solid rgba(34, 230, 211, .3);
  background: rgba(34, 230, 211, .07);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.72;
}

.page-faq .qa__confirm::before {
  content: "确认 · ";
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--cyan);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--steel);
  background: linear-gradient(152deg, rgba(26, 16, 48, .92), rgba(7, 8, 15, .96));
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid rgba(42, 52, 70, .8);
  filter: saturate(1.05) contrast(1.04);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  padding: 0 4px 4px;
  color: var(--mist);
  font-size: 13px;
  line-height: 1.68;
}

/* ---------- 对照提示带 ---------- */
.page-faq .faq-band {
  margin-top: clamp(28px, 4.6vw, 54px);
  border-top: 1px solid rgba(255, 75, 43, .42);
  border-bottom: 1px solid rgba(255, 75, 43, .42);
  background: linear-gradient(100deg, rgba(255, 75, 43, .13), rgba(122, 92, 255, .09) 55%, rgba(7, 8, 15, 0) 92%);
}

.page-faq .faq-band__inner {
  display: grid;
  gap: 6px;
  padding: 18px 0;
}

.page-faq .faq-band__k {
  margin: 0;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--alert);
}

.page-faq .faq-band__t {
  margin: 0;
  color: var(--paper);
  font-size: 14.5px;
  line-height: 1.75;
}

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

/* ---------- 继续求助 ---------- */
.page-faq .faq-contact {
  margin-top: var(--faq-gap);
  padding-top: var(--faq-gap);
  border-top: 1px solid var(--steel);
  scroll-margin-top: calc(var(--bar-h) + 16px);
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-checklist {
  padding: var(--faq-pad);
  background: var(--paper);
  color: var(--paper-ink);
  border: 1px solid #14161c;
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-checklist__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 18px;
  line-height: 1.4;
  color: #14161c;
}

.page-faq .faq-checklist__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .faq-checklist__list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.72;
  color: #14161c;
}

.page-faq .faq-checklist__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 6px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--violet);
  border-bottom: 2px solid var(--violet);
  transform: rotate(45deg);
}

.page-faq .faq-channels {
  padding: var(--faq-pad);
  border: 1px solid var(--steel);
  background: linear-gradient(158deg, rgba(14, 20, 32, .96), rgba(26, 16, 48, .9));
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-channels__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper);
}

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

.page-faq .faq-channels__list .contact-line {
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(42, 52, 70, .8);
}

.page-faq .faq-channels__list .contact-line:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-channels__list .contact-line__k {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-channels__list .contact-line__v {
  min-width: 0;
  font-size: 14.5px;
  color: var(--paper);
  text-align: right;
  word-break: break-all;
}

.page-faq .faq-channels__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

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

.page-faq .faq-channels .btn {
  align-self: flex-start;
  margin-top: 2px;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-band__inner {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-head__grid {
    grid-template-columns: minmax(0, 7fr) minmax(250px, 4fr);
    gap: clamp(30px, 4.6vw, 68px);
    align-items: end;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: clamp(22px, 3.4vw, 42px);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-group__grid {
    grid-template-columns: minmax(0, 1fr) minmax(270px, 360px);
    gap: clamp(26px, 3.6vw, 48px);
  }

  .page-faq .faq-group__grid--flip {
    grid-template-columns: minmax(270px, 360px) minmax(0, 1fr);
  }

  .page-faq .faq-group__grid--flip .faq-figure {
    order: -1;
  }

  .page-faq .qa__q {
    font-size: 16px;
    padding: 17px 48px 17px 22px;
  }

  .page-faq .qa__body {
    margin: 0 22px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-head__side-v {
    font-size: 52px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .qa,
  .page-faq .qa__q,
  .page-faq .qa__q::after,
  .page-faq .qa::before {
    transition: none !important;
  }

  .page-faq .faq-chip:hover,
  .page-faq .faq-chip:focus-visible {
    transform: none;
  }
}
<<<END>>>