.page-faq {
  --faq-index-w: 236px;
  --faq-card: #ffffff;
  --faq-tint: #f4ede3;
  --faq-gap: clamp(18px, 3vw, 36px);
  background: var(--lf-paper);
  color: var(--lf-text);
  font-family: var(--lf-font-body);
  overflow-x: clip;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(38px, 6vw, 72px);
  background: linear-gradient(180deg, #ffffff 0%, var(--lf-paper) 100%);
  border-bottom: 1px solid var(--lf-line);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
  margin-top: clamp(18px, 3vw, 32px);
}

.page-faq .faq-hero__copy .eyebrow {
  color: var(--lf-brand);
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--lf-font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.2vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--lf-ink);
  max-width: 16em;
}

.page-faq .faq-hero__lede {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: clamp(15.5px, 1.15vw, 17px);
  line-height: 1.78;
  color: var(--lf-muted);
  max-width: 34em;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .faq-hero__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--lf-muted);
  padding-left: 14px;
  border-left: 2px solid var(--lf-line);
}

.page-faq .faq-hero__art {
  display: flex;
  justify-content: center;
}

.page-faq .faq-radar {
  width: 100%;
  max-width: 320px;
  height: auto;
  display: block;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: clamp(32px, 5vw, 72px);
  }
  .page-faq .faq-hero__art {
    justify-content: flex-end;
  }
  .page-faq .faq-radar {
    max-width: 380px;
  }
}

/* ---------- 深墨蓝问题域块 ---------- */
.page-faq .faq-domains {
  position: relative;
  background: var(--lf-ink);
  color: #ffffff;
  padding: var(--lf-rhythm) 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.055) 0 1px, transparent 1px 72px);
}

.page-faq .faq-block__head--invert .eyebrow {
  color: var(--lf-spark);
  margin: 0 0 14px;
}

.page-faq .faq-block__title {
  font-family: var(--lf-font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  line-height: 1.18;
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--lf-ink);
  max-width: 22em;
}

.page-faq .faq-block__head--invert .faq-block__title {
  color: #ffffff;
}

.page-faq .faq-domains__lede {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(255, 255, 255, 0.74);
}

.page-faq .faq-phenom {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--lf-radius);
  overflow: hidden;
}

.page-faq .faq-phenom__card {
  background: var(--lf-ink);
  padding: clamp(20px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background 0.2s ease;
}

.page-faq .faq-phenom__card:hover {
  background: var(--lf-ink-2);
}

.page-faq .faq-phenom__num {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lf-spark);
}

.page-faq .faq-phenom__title {
  margin: 0;
  font-family: var(--lf-font-display);
  font-weight: 800;
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-faq .faq-phenom__title a {
  color: #ffffff;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.page-faq .faq-phenom__title a:hover,
.page-faq .faq-phenom__title a:focus-visible {
  border-bottom-color: var(--lf-brand-lift);
}

.page-faq .faq-phenom__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-phenom__go {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--lf-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lf-spark);
}

@media (min-width: 820px) {
  .page-faq .faq-phenom {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 工位式双栏 ---------- */
.page-faq .faq-workbench {
  padding: clamp(32px, 5vw, 64px) 0 var(--lf-rhythm);
}

.page-faq .faq-workbench__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  color: var(--lf-muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  scrollbar-width: thin;
}

.page-faq .faq-index__item {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--lf-line);
  border-radius: 999px;
  background: var(--faq-card);
  color: var(--lf-text);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-index__num {
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--lf-muted);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--lf-brand);
  color: var(--lf-brand);
  background: rgba(201, 51, 26, 0.05);
}

.page-faq .faq-index__link:hover .faq-index__num,
.page-faq .faq-index__link:focus-visible .faq-index__num {
  color: var(--lf-brand);
}

@media (min-width: 1024px) {
  .page-faq .faq-workbench__grid {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }
  .page-faq .faq-index {
    position: sticky;
    top: 28px;
  }
  .page-faq .faq-index__label {
    padding-left: 17px;
  }
  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--lf-line);
  }
  .page-faq .faq-index__item + .faq-index__item {
    margin-top: 2px;
  }
  .page-faq .faq-index__link {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 8px;
    width: 100%;
    padding: 10px 12px 10px 14px;
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0;
    background: transparent;
    white-space: normal;
    margin-left: -1px;
  }
  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--lf-brand);
    background: rgba(201, 51, 26, 0.06);
  }
}

/* ---------- 内容块通用 ---------- */
.page-faq .faq-flow {
  min-width: 0;
}

.page-faq .faq-block + .faq-block {
  margin-top: clamp(44px, 6vw, 76px);
  padding-top: clamp(44px, 6vw, 76px);
  border-top: 1px solid var(--lf-line);
}

.page-faq .faq-block .eyebrow {
  color: var(--lf-brand);
  margin: 0 0 12px;
}

.page-faq .faq-block__lede {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--lf-muted);
}

.page-faq .faq-block--tint {
  background: var(--faq-tint);
  border-radius: var(--lf-radius);
  padding: clamp(22px, 3.4vw, 36px);
  border-top: 1px solid var(--lf-line);
}

.page-faq .faq-block--tint + .faq-block {
  margin-top: clamp(44px, 6vw, 76px);
}

.page-faq .faq-footnote {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--lf-muted);
}

.page-faq .faq-footnote a {
  color: var(--lf-brand);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 登录四层 ---------- */
.page-faq .faq-login-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

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

.page-faq .faq-steps {
  margin-top: clamp(22px, 3vw, 32px);
  display: grid;
  gap: 10px;
}

.page-faq .faq-step {
  background: var(--faq-card);
  border: 1px solid var(--lf-line);
  border-left: 3px solid var(--lf-ink);
  border-radius: var(--lf-radius);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-step[open] {
  border-left-color: var(--lf-brand);
  box-shadow: 0 10px 26px -22px rgba(15, 36, 56, 0.6);
}

.page-faq .faq-step__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-step__summary:focus-visible {
  outline: 2px solid var(--lf-spark);
  outline-offset: -2px;
}

.page-faq .faq-step__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lf-brand);
  padding: 3px 8px;
  border: 1px solid rgba(201, 51, 26, 0.28);
  border-radius: 6px;
  background: rgba(201, 51, 26, 0.06);
}

.page-faq .faq-step__title {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-family: var(--lf-font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--lf-ink);
}

.page-faq .faq-step__hint {
  font-family: var(--lf-font-body);
  font-weight: 400;
  font-size: 12.5px;
  letter-spacing: 0;
  color: var(--lf-muted);
}

.page-faq .faq-step__mark::before {
  content: "+";
  display: block;
  font-family: var(--lf-font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lf-muted);
  transition: color 0.18s ease;
}

.page-faq .faq-step[open] .faq-step__mark::before {
  content: "−";
  color: var(--lf-brand);
}

.page-faq .faq-step__body {
  padding: 2px 16px 18px;
}

.page-faq .faq-step__list {
  margin: 0;
  padding-left: 1.25em;
  display: grid;
  gap: 10px;
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-step__list li::marker {
  color: var(--lf-brand-lift);
  font-family: var(--lf-font-mono);
  font-size: 13px;
}

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--lf-line);
}

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

.page-faq .faq-figure .figure__frame {
  border: 1px solid var(--lf-line);
  border-radius: var(--lf-radius);
  background: #ffffff;
}

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--lf-muted);
}

.page-faq .faq-figure--wide {
  margin-top: clamp(24px, 3.5vw, 36px);
}

@media (min-width: 1000px) {
  .page-faq .faq-login-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  }
  .page-faq .faq-login__aside {
    position: sticky;
    top: 28px;
  }
}

/* ---------- 路径自查清单 ---------- */
.page-faq .faq-checklist {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: faqstep;
}

.page-faq .faq-check {
  display: grid;
  grid-template-columns: 20px auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  background: var(--faq-card);
  border: 1px solid var(--lf-line);
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-check:hover {
  border-color: rgba(201, 51, 26, 0.4);
}

.page-faq .faq-check__input {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  margin: 1px 0 0;
  border: 1.5px solid var(--lf-line);
  border-radius: 6px;
  background: #ffffff;
  cursor: pointer;
  position: relative;
  flex: none;
  transition: background 0.16s ease, border-color 0.16s ease;
}

.page-faq .faq-check__input:checked {
  background: var(--lf-brand);
  border-color: var(--lf-brand);
}

.page-faq .faq-check__input:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  transform: rotate(45deg);
}

.page-faq .faq-check__input:focus-visible {
  outline: 2px solid var(--lf-spark);
  outline-offset: 2px;
}

.page-faq .faq-check__num {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--lf-muted);
  padding-top: 3px;
}

.page-faq .faq-check__text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--lf-text);
  transition: color 0.18s ease;
}

.page-faq .faq-check:has(.faq-check__input:checked) {
  background: #f7f1e8;
}

.page-faq .faq-check__input:checked ~ .faq-check__text {
  color: var(--lf-muted);
}

/* ---------- 兼容终端 ---------- */
.page-faq .faq-terminals {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-terminal {
  position: relative;
  background: var(--faq-card);
  border: 1px solid var(--lf-line);
  border-radius: var(--lf-radius);
  padding: 22px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .faq-terminal::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 18px;
  right: 18px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--lf-ink-2);
}

.page-faq .faq-terminal:nth-child(odd)::before {
  background: var(--lf-brand);
}

.page-faq .faq-terminal__name {
  font-family: var(--lf-font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lf-ink);
  font-weight: 700;
}

.page-faq .faq-terminal__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--lf-text);
}

.page-faq .faq-terminal__fix {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--lf-line);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--lf-signal);
}

@media (min-width: 620px) {
  .page-faq .faq-terminals {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-terminals {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 错误码表 ---------- */
.page-faq .faq-table-wrap {
  margin-top: clamp(22px, 3vw, 32px);
  overflow: auto;
  border: 1px solid var(--lf-line);
  border-radius: var(--lf-radius);
  background: var(--faq-card);
  max-height: 420px;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 620px;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14.5px;
  line-height: 1.65;
}

.page-faq .faq-table th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--lf-ink-2);
  color: #ffffff;
  text-align: left;
  font-family: var(--lf-font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 12px 14px;
  white-space: nowrap;
}

.page-faq .faq-table td {
  padding: 13px 14px;
  border-top: 1px solid var(--lf-line);
  vertical-align: top;
  color: var(--lf-text);
}

.page-faq .faq-table tbody tr:hover td {
  background: rgba(201, 51, 26, 0.045);
}

.page-faq .faq-table td.mono {
  color: var(--lf-muted);
  font-size: 13px;
  white-space: nowrap;
}

.page-faq .faq-code {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  border: 1px solid rgba(201, 51, 26, 0.3);
  background: rgba(201, 51, 26, 0.07);
  color: var(--lf-brand);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-faq .faq-terms {
  margin-top: clamp(24px, 3.4vw, 36px);
}

.page-faq .faq-terms__title {
  margin: 0 0 14px;
  font-family: var(--lf-font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--lf-ink);
}

.page-faq .faq-terms__list {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--lf-line);
  border: 1px solid var(--lf-line);
  border-radius: 12px;
  overflow: hidden;
}

.page-faq .faq-term {
  background: var(--faq-card);
  padding: 14px 16px;
}

.page-faq .faq-term dt {
  font-weight: 700;
  font-size: 14.5px;
  color: var(--lf-ink);
  margin-bottom: 4px;
}

.page-faq .faq-term dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--lf-muted);
}

@media (min-width: 760px) {
  .page-faq .faq-terms__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 工单准备 ---------- */
.page-faq .faq-ticket__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 36px);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-prep__title {
  margin: 0 0 14px;
  font-family: var(--lf-font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--lf-ink);
}

.page-faq .faq-prep__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: prep;
  display: grid;
  gap: 9px;
}

.page-faq .faq-prep__list li {
  counter-increment: prep;
  position: relative;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--lf-text);
}

.page-faq .faq-prep__list li::before {
  content: counter(prep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--lf-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #ffffff;
  background: var(--lf-brand);
  border-radius: 5px;
  padding: 1px 5px;
}

.page-faq .faq-channels {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-channel {
  background: var(--faq-card);
  border: 1px solid var(--lf-line);
  border-left: 3px solid var(--lf-ink);
  border-radius: 12px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-channel:first-child {
  border-left-color: var(--lf-brand);
}

.page-faq .faq-channel__name {
  font-family: var(--lf-font-display);
  font-weight: 800;
  font-size: 15.5px;
  color: var(--lf-ink);
}

.page-faq .faq-channel__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--lf-muted);
  word-break: break-word;
}

.page-faq .faq-channel__meta {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--lf-signal);
}

@media (min-width: 940px) {
  .page-faq .faq-ticket__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  background: var(--lf-ink);
  color: #ffffff;
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-faq .faq-cta__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  align-items: center;
}

.page-faq .faq-cta__title {
  margin: 0;
  font-family: var(--lf-font-display);
  font-weight: 900;
  font-size: clamp(1.45rem, 3.4vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: #ffffff;
}

.page-faq .faq-cta__text {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.74);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 880px) {
  .page-faq .faq-cta__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: clamp(32px, 5vw, 64px);
  }
  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }
}
<<<END>>>