.page-faq {
  --faq-gap: clamp(14px, 2.4vw, 24px);
  --faq-pad: clamp(52px, 8vw, 104px);
  background: var(--ink);
  color: var(--ice);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-faq .container {
  padding-left: clamp(18px, 5vw, 48px);
  padding-right: clamp(18px, 5vw, 48px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(104px, 15vw, 178px) 0 clamp(48px, 8vw, 88px);
  background: linear-gradient(158deg, var(--teal) 0%, var(--ink) 58%, var(--ink) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(112deg, transparent 0 46px, rgba(56, 232, 216, 0.055) 46px 47px);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -22%;
  right: -12%;
  width: 58%;
  height: 145%;
  background: linear-gradient(152deg, rgba(23, 21, 46, 0.92), rgba(23, 21, 46, 0) 72%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

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

.page-faq .faq-hero__crumb {
  margin-bottom: clamp(20px, 4vw, 36px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: end;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 82px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--ice);
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--steel);
}

/* 命令行式快速定位 */
.page-faq .faq-cmd {
  margin-top: clamp(24px, 4vw, 38px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: rgba(7, 20, 31, 0.74);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .faq-cmd__prompt {
  font-size: 14px;
  color: var(--cyan);
}

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

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

.page-faq .faq-cmd__tags a {
  display: inline-block;
  padding: 5px 11px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ice);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: color 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}

.page-faq .faq-cmd__tags a:hover,
.page-faq .faq-cmd__tags a:focus-visible {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
}

.page-faq .faq-hero__figure {
  margin: 0;
  padding: 10px;
  background: rgba(11, 43, 51, 0.55);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

/* 四类入口 */
.page-faq .faq-doors {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(30px, 5vw, 52px);
  grid-template-columns: 1fr;
}

.page-faq .faq-door {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 18px 18px 20px;
  text-decoration: none;
  color: var(--ice);
  background: rgba(11, 43, 51, 0.62);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-door::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--door-accent, var(--cyan));
}

.page-faq .faq-door:hover,
.page-faq .faq-door:focus-visible {
  transform: translateY(-4px);
  border-color: var(--door-accent, var(--cyan));
  background: rgba(11, 43, 51, 0.94);
}

.page-faq .faq-door--version { --door-accent: var(--amber); }
.page-faq .faq-door--adapt { --door-accent: var(--cyan); }
.page-faq .faq-door--account { --door-accent: var(--magenta); }
.page-faq .faq-door--column { --door-accent: var(--steel); }

.page-faq .faq-door__num {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--door-accent, var(--cyan));
}

.page-faq .faq-door__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.01em;
}

.page-faq .faq-door__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--steel);
}

.page-faq .faq-door__count {
  margin-top: 4px;
  font-size: 12px;
  color: var(--steel);
}

/* ---------- 通用区块 ---------- */
.page-faq .faq-block {
  position: relative;
  padding: var(--faq-pad) 0;
}

.page-faq .faq-block--claim {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-soft) 100%);
}

.page-faq .faq-block--teal {
  background: linear-gradient(180deg, var(--teal) 0%, var(--ink) 94%);
}

.page-faq .faq-block--indigo {
  background: linear-gradient(180deg, var(--indigo) 0%, var(--ink) 92%);
}

.page-faq .faq-block--wine {
  background: linear-gradient(180deg, var(--wine) 0%, var(--ink) 96%);
}

.page-faq .faq-head {
  max-width: 720px;
  margin-bottom: clamp(26px, 4.5vw, 44px);
}

.page-faq .faq-head__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(25px, 4.6vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ice);
}

.page-faq .faq-head__lead {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 版本号领取步骤 ---------- */
.page-faq .faq-claim {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
  counter-reset: none;
}

.page-faq .faq-steps__item {
  position: relative;
  padding: 18px 18px 20px;
  background: rgba(11, 43, 51, 0.4);
  border: 1px solid var(--line);
  border-left: 2px solid var(--amber);
}

.page-faq .faq-steps__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .faq-steps__title {
  margin: 8px 0 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ice);
}

.page-faq .faq-steps__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .faq-claim__figure {
  margin: 0;
  padding: 10px;
  background: rgba(7, 20, 31, 0.6);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

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

.page-faq .faq-claim__cap {
  display: block;
  margin: 12px 2px 2px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

/* ---------- 适配问答手风琴 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-split__aside .faq-head__title {
  font-size: clamp(24px, 4vw, 38px);
}

.page-faq .faq-split__link {
  display: inline-block;
  margin-top: 18px;
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
}

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

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

.page-faq .qa {
  background: rgba(7, 20, 31, 0.52);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .qa[open] {
  border-color: var(--cyan);
  background: rgba(11, 43, 51, 0.75);
}

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__num {
  font-size: 12px;
  padding-top: 4px;
  color: var(--amber);
}

.page-faq .qa__q {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ice);
}

.page-faq .qa__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.18s ease, background 0.18s ease;
}

.page-faq .qa__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .qa__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

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

.page-faq .qa[open] .qa__mark::before {
  background: var(--amber);
}

.page-faq .qa__body {
  padding: 0 16px 18px 16px;
}

.page-faq .qa__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--steel);
}

/* ---------- 版本号读法 ---------- */
.page-faq .faq-ver {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-ver__card {
  padding: 22px 20px 24px;
  background: rgba(7, 20, 31, 0.68);
  border-color: var(--amber);
}

.page-faq .faq-ver__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-faq .faq-ver__code {
  margin: 8px 0 20px;
  font-size: clamp(26px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--amber);
}

.page-faq .faq-ver__rows {
  display: grid;
  gap: 12px;
}

.page-faq .faq-ver__row {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: start;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-ver__tag {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

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

.page-faq .faq-ver__notes {
  display: grid;
  gap: 16px;
}

.page-faq .faq-ver__note {
  padding: 18px 18px 20px;
  background: rgba(23, 21, 46, 0.62);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-faq .faq-ver__note-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-faq .faq-ver__note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .faq-ver__link {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
}

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

/* ---------- 账号与栏目 ---------- */
.page-faq .faq-tips {
  display: grid;
  gap: var(--faq-gap);
  grid-template-columns: 1fr;
}

.page-faq .faq-tip {
  padding: 18px 18px 20px;
  background: rgba(11, 43, 51, 0.34);
  border: 1px solid var(--line);
  border-bottom: 2px solid var(--line);
  transition: border-bottom-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-tip:hover {
  border-bottom-color: var(--magenta);
  background: rgba(11, 43, 51, 0.55);
}

.page-faq .faq-tip__q {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice);
}

.page-faq .faq-tip__a {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-help__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(25px, 4.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ice);
}

.page-faq .faq-help__lead {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .faq-help__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ice);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .faq-help__btn {
  margin-top: 24px;
  text-decoration: none;
}

.page-faq .faq-help__meta {
  padding: 22px 20px 24px;
  background: rgba(7, 20, 31, 0.62);
  border-color: var(--line);
}

.page-faq .faq-help__meta-key {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-help__meta-val {
  margin: 4px 0 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ice);
  word-break: break-word;
}

.page-faq .faq-help__meta-note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .faq-help__meta-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 232, 216, 0.5);
}

.page-faq .faq-help__meta-note a:hover,
.page-faq .faq-help__meta-note a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-doors {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .qa__body {
    padding-left: 46px;
    padding-right: 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .faq-claim {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-faq .faq-split__aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-ver {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-doors {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-door:nth-child(even) {
    transform: translateY(14px);
  }

  .page-faq .faq-door:nth-child(even):hover,
  .page-faq .faq-door:nth-child(even):focus-visible {
    transform: translateY(10px);
  }

  .page-faq .faq-ver__card {
    margin-top: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-door,
  .page-faq .qa,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-tip,
  .page-faq .faq-cmd__tags a {
    transition: none;
  }

  .page-faq .faq-door:hover,
  .page-faq .faq-door:focus-visible,
  .page-faq .faq-door:nth-child(even),
  .page-faq .faq-door:nth-child(even):hover,
  .page-faq .faq-door:nth-child(even):focus-visible {
    transform: none;
  }
}
<<<END>>>