.page-faq {
  --faq-sticky: calc(var(--header-h) + 24px);
  --faq-surface: rgba(16, 47, 74, 0.62);
  --faq-surface-deep: rgba(7, 26, 47, 0.9);
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(45, 226, 230, 0.13), transparent 68%),
    radial-gradient(760px 460px at 92% 4%, rgba(255, 122, 26, 0.1), transparent 66%),
    linear-gradient(180deg, var(--navy-900) 0%, #061525 52%, var(--navy-800) 100%);
  color: var(--paper);
  font-family: var(--font-body);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(18px, 3vw, 30px) 0 clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
  grid-template-columns: 1fr;
}

.page-faq .faq-hero__lead h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-family: var(--font-editorial);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

/* 状态面板 */
.page-faq .faq-status {
  padding: 18px 18px 20px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan);
  background: linear-gradient(165deg, rgba(16, 47, 74, 0.92), var(--faq-surface-deep));
  box-shadow: 0 0 0 1px rgba(45, 226, 230, 0.06);
}

.page-faq .faq-status__title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan-soft);
}

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

.page-faq .faq-status__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--paper);
}

.page-faq .faq-status__item .status-dot {
  flex: none;
  margin-top: 7px;
  animation: faq-pulse 2.6s ease-in-out infinite;
}

.page-faq .faq-status__item .faq-dot--warn {
  background: var(--yellow);
  box-shadow: 0 0 8px rgba(255, 200, 87, 0.6);
  animation: none;
}

.page-faq .faq-status__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

@keyframes faq-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.78); }
}

/* ---------- 双栏外壳 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 34px);
  align-items: start;
  padding-top: clamp(20px, 3vw, 34px);
  padding-bottom: clamp(40px, 7vw, 84px);
}

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

/* 侧栏目录 */
.page-faq .faq-rail {
  min-width: 0;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 14px;
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-rail__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-faq .faq-rail__nav a {
  flex: none;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 12px;
  border: 1px solid var(--line-soft);
  background: rgba(16, 47, 74, 0.55);
  color: var(--paper);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-rail__nav a .mono {
  font-size: 11px;
  color: var(--orange);
}

.page-faq .faq-rail__nav a:hover,
.page-faq .faq-rail__nav a:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan-soft);
}

.page-faq .faq-rail__foot {
  display: none;
  margin: 14px 0 0;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 章节 ---------- */
.page-faq .faq-block {
  scroll-margin-top: calc(var(--header-h) + 20px);
  padding: clamp(24px, 3.6vw, 40px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-faq .faq-block--last {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-block__head {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-block__head .chapter-no {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(30px, 4.4vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(45, 226, 230, 0.55);
}

.page-faq .faq-block__head h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.9vw, 31px);
  line-height: 1.25;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-block__lede {
  margin: 10px 0 0;
  max-width: 68ch;
  font-family: var(--font-editorial);
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 快速分流卡 ---------- */
.page-faq .faq-quickbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-faq .faq-quick {
  position: relative;
  display: grid;
  gap: 8px;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  background: linear-gradient(160deg, rgba(16, 47, 74, 0.86), var(--faq-surface-deep));
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.page-faq .faq-quick:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 22px rgba(45, 226, 230, 0.16);
  transform: translateY(-2px);
}

.page-faq .faq-quick__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--orange);
  color: var(--orange);
  font-size: 12px;
}

.page-faq .faq-quick h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .faq-quick p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .faq-quick__go {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

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

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 登录步骤 ---------- */
.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  counter-reset: none;
}

.page-faq .faq-step__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 16px 16px 14px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--line);
  background: var(--faq-surface);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-step__label:hover {
  border-left-color: var(--cyan);
  background: rgba(16, 47, 74, 0.82);
}

.page-faq .faq-step__box {
  flex: none;
  width: 17px;
  height: 17px;
  margin: 3px 0 0;
  accent-color: var(--cyan);
}

.page-faq .faq-step__no {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 122, 26, 0.55);
  color: var(--orange);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .faq-step__body {
  display: grid;
  gap: 6px;
  min-width: 0;
  transition: opacity 0.2s ease;
}

.page-faq .faq-step__body strong {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .faq-step__body span {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-step__box:checked ~ .faq-step__body {
  opacity: 0.55;
}

/* ---------- 错误代码 ---------- */
.page-faq .err-board {
  border: 1px solid var(--line-soft);
  background: rgba(7, 26, 47, 0.55);
}

.page-faq .faq-filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .err-rows {
  display: grid;
}

.page-faq .err-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px;
  border-bottom: 1px solid rgba(58, 107, 138, 0.28);
  border-left: 2px solid transparent;
  transition: background 0.2s ease, border-left-color 0.2s ease;
}

.page-faq .err-row:last-child {
  border-bottom: 0;
}

.page-faq .err-row:hover {
  background: rgba(16, 47, 74, 0.6);
  border-left-color: var(--cyan);
}

.page-faq .filter-item[hidden] {
  display: none;
}

.page-faq .err-code {
  justify-self: start;
  padding: 5px 10px;
  border: 1px solid rgba(45, 226, 230, 0.45);
  background: rgba(45, 226, 230, 0.08);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq .err-code:hover {
  background: rgba(45, 226, 230, 0.18);
}

.page-faq .err-code[data-copied="true"] {
  border-color: var(--green);
  background: rgba(56, 232, 160, 0.16);
  color: var(--green);
}

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

.page-faq .err-cause::before {
  content: "原因 · ";
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--orange-soft);
}

.page-faq .err-next {
  color: var(--paper);
}

.page-faq .err-next::before {
  content: "下一步 · ";
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

/* ---------- 苹果设备 ---------- */
.page-faq .faq-apple {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 30px);
}

.page-faq .faq-figure--apple {
  margin: 0;
}

.page-faq .faq-apple__list {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-apple__item {
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid rgba(45, 226, 230, 0.4);
  background: var(--faq-surface);
}

.page-faq .faq-apple__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .faq-apple__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 网络清单 ---------- */
.page-faq .net-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .net-item {
  border: 1px solid var(--line-soft);
  background: rgba(11, 39, 66, 0.6);
  transition: border-color 0.2s ease;
}

.page-faq .net-item:hover {
  border-color: rgba(45, 226, 230, 0.55);
}

.page-faq .net-item label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 13px 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  cursor: pointer;
}

.page-faq .net-item input {
  flex: none;
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  accent-color: var(--cyan);
}

.page-faq .net-item input:checked + span {
  color: var(--mist);
  text-decoration: line-through;
  text-decoration-color: rgba(157, 180, 204, 0.5);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-touch {
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--orange);
  background: linear-gradient(160deg, rgba(16, 47, 74, 0.86), var(--faq-surface-deep));
}

.page-faq .faq-touch__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange-soft);
}

.page-faq .faq-touch__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-touch__value {
  font-size: clamp(14px, 1.9vw, 17px);
  letter-spacing: 0.03em;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-touch__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .faq-prep {
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-soft);
  background: rgba(7, 26, 47, 0.6);
}

.page-faq .faq-prep__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--paper);
}

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

.page-faq .faq-prep__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-prep__list .mono {
  flex: none;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding-top: 2px;
}

.page-faq .faq-prep__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

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

/* ---------- 收藏 ---------- */
.page-faq .faq-bookmark {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 30px);
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--line-soft);
  background:
    radial-gradient(420px 220px at 88% 12%, rgba(255, 122, 26, 0.14), transparent 70%),
    linear-gradient(150deg, rgba(16, 47, 74, 0.9), var(--faq-surface-deep));
}

.page-faq .faq-bookmark__copy h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.35;
  color: var(--paper);
}

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

.page-faq .faq-bookmark__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.page-faq .faq-bookmark__mark {
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 6px;
  padding: 18px;
  border: 1px dashed rgba(45, 226, 230, 0.45);
  text-align: center;
}

.page-faq .faq-bookmark__ring {
  width: 40px;
  height: 40px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 16px rgba(45, 226, 230, 0.35);
}

.page-faq .faq-bookmark__mark p {
  margin: 0;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-bookmark__mark .mono {
  color: var(--cyan);
  font-size: 14px;
  letter-spacing: 0.05em;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-quickbar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .err-row {
    grid-template-columns: 108px minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
    gap: 4px 18px;
    padding: 16px 18px;
  }

  .page-faq .err-cause::before,
  .page-faq .err-next::before {
    content: none;
  }

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

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

  .page-faq .faq-apple {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }

  .page-faq .faq-bookmark {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.7fr);
    align-items: center;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.75fr);
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 48px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: var(--faq-sticky);
    border-bottom: 0;
    border-left: 1px solid var(--line-soft);
    padding: 0 0 0 16px;
  }

  .page-faq .faq-rail__nav {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__nav a {
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 8px 0 8px 10px;
    margin-left: -18px;
    font-size: 13.5px;
  }

  .page-faq .faq-rail__nav a:hover,
  .page-faq .faq-rail__nav a:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(45, 226, 230, 0.07);
    color: var(--cyan-soft);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-status__item .status-dot {
    animation: none;
  }

  .page-faq .faq-quick,
  .page-faq .err-row,
  .page-faq .net-item,
  .page-faq .faq-step__label {
    transition: none;
  }

  .page-faq .faq-quick:hover {
    transform: none;
  }
}
<<<END>>>