.page-faq {
  --faq-gap: clamp(20px, 3vw, 36px);
  --faq-row-pad: clamp(14px, 2vw, 20px);
}

.page-faq .faq-crumbs {
  padding: clamp(16px, 3vw, 28px) 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 6vw, 76px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 82%;
  z-index: -2;
  background: linear-gradient(158deg, var(--panel) 0%, var(--ink) 68%);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 58% 100%, 0 86%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 88px);
  opacity: .5;
  mask-image: linear-gradient(120deg, #000 0%, transparent 62%);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 62px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--card);
}

.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__meta {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--metal);
}

.page-faq .faq-hero__panel {
  padding: 22px 20px 20px;
  background: rgba(14, 42, 34, .8);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--cyan);
  backdrop-filter: blur(2px);
}

.page-faq .faq-hero__panel-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--metal);
}

.page-faq .faq-hero__ver {
  margin: 8px 0 0;
  font-size: clamp(30px, 8vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-hero__batch {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--orange);
}

.page-faq .faq-copy {
  margin-top: 16px;
  padding: 9px 16px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--ink);
  background: var(--cyan);
  border: 1px solid var(--cyan);
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  background: var(--mist);
  color: var(--ink);
}

.page-faq .faq-copy--ink {
  background: transparent;
  color: var(--brown);
  border-color: var(--brown);
}

.page-faq .faq-copy--ink:hover,
.page-faq .faq-copy--ink:focus-visible {
  background: var(--brown);
  color: var(--card);
}

.page-faq .faq-hero__panel-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--metal);
}

/* ---------- 通用标题区 ---------- */
.page-faq .faq-head {
  max-width: 46em;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--card);
}

.page-faq .faq-head p:not(.eyebrow) {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--metal);
}

.page-faq .eyebrow--ink {
  color: var(--brown);
}

/* ---------- 症状对照 ---------- */
.page-faq .faq-compare__media {
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-faq .faq-rows {
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-row {
  display: grid;
  gap: 10px;
  padding: var(--faq-row-pad) 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-row__symptom,
.page-faq .faq-row__action {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-row__symptom {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--card);
}

.page-faq .faq-row__action {
  position: relative;
  padding-left: 26px;
  color: var(--mist);
}

.page-faq .faq-row__action::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-faq .faq-dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 9px;
  background: var(--metal);
}

.page-faq .faq-dot--alert { background: var(--alert); }
.page-faq .faq-dot--orange { background: var(--orange); }
.page-faq .faq-dot--metal { background: var(--metal); }

/* ---------- 三步自查 ---------- */
.page-faq .faq-steps {
  background: linear-gradient(180deg, transparent 0%, rgba(14, 42, 34, .55) 18%, rgba(14, 42, 34, .55) 100%);
}

.page-faq .faq-steps__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-steps__sticky h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 36px);
  line-height: 1.2;
  color: var(--card);
}

.page-faq .faq-steps__sticky p:not(.eyebrow) {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--metal);
}

.page-faq .faq-steps__media {
  margin: 20px 0 0;
  max-width: 360px;
}

.page-faq .faq-step {
  position: relative;
  padding: 20px 20px 22px;
  margin-bottom: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
}

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

.page-faq .faq-step__idx {
  margin: 0;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-faq .faq-step h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.6vw, 24px);
  color: var(--card);
}

.page-faq .faq-step p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-step__list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-step__list li {
  position: relative;
  padding: 9px 0 9px 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--metal);
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-step__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

.page-faq .faq-step__list .mono {
  color: var(--card);
}

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

.page-faq .faq-step__action {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

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

/* ---------- 编号位置：纸面卡 ---------- */
.page-faq .faq-locate__card {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(22px, 4vw, 40px);
  background: var(--paper);
  color: var(--brown);
  border: 1px solid var(--line-strong);
}

.page-faq .faq-locate__col h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4vw, 34px);
  line-height: 1.2;
  color: var(--brown);
}

.page-faq .faq-locate .prose--paper {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--brown);
}

.page-faq .faq-locate__sample {
  padding: 18px;
  background: var(--card);
  border: 1px solid rgba(58, 47, 36, .22);
  border-left: 3px solid var(--orange);
}

.page-faq .faq-locate__sample-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--metal);
}

.page-faq .faq-locate__sample-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--brown);
}

.page-faq .faq-locate__sep {
  color: var(--orange);
}

.page-faq .faq-locate__sample-note {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--metal);
}

/* ---------- 提交模板 ---------- */
.page-faq .faq-template__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-template__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-tpl;
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-template__list li {
  position: relative;
  padding: 16px 0 16px 44px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--metal);
  border-bottom: 1px solid var(--line);
  counter-increment: faq-tpl;
}

.page-faq .faq-template__list li::before {
  content: counter(faq-tpl, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
}

.page-faq .faq-template__k {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--card);
}

.page-faq .faq-template__copybox {
  align-self: start;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line-strong);
}

.page-faq .faq-template__copybox-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--metal);
}

.page-faq .faq-template__pre {
  margin: 12px 0 0;
  padding: 14px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2;
  color: var(--mist);
  background: rgba(7, 26, 22, .7);
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-template__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--metal);
}

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

/* ---------- 异常分类手风琴 ---------- */
.page-faq .faq-acc {
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-acc__item {
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.page-faq .faq-acc__item[open] {
  background: var(--panel);
}

.page-faq .faq-acc__summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}

.page-faq .faq-acc__item[open] .faq-acc__summary {
  padding: 16px 18px;
}

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

.page-faq .faq-acc__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
}

.page-faq .faq-acc__item[open] .faq-acc__summary::after {
  content: "−";
}

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

.page-faq .faq-acc__idx {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-faq .faq-acc__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--card);
}

.page-faq .faq-acc__flag {
  padding: 2px 8px;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--ink);
  background: var(--metal);
}

.page-faq .faq-acc__flag--alert { background: var(--alert); color: var(--card); }
.page-faq .faq-acc__flag--orange { background: var(--orange); }
.page-faq .faq-acc__flag--cyan { background: var(--cyan); }
.page-faq .faq-acc__flag--metal { background: var(--metal); }

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

.page-faq .faq-acc__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-acc__link {
  margin-bottom: 0 !important;
}

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

/* ---------- 人工协助 ---------- */
.page-faq .faq-help {
  background: linear-gradient(0deg, rgba(255, 122, 51, .09) 0%, transparent 74%);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-faq .faq-help__lead h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4vw, 34px);
  line-height: 1.2;
  color: var(--card);
}

.page-faq .faq-help__lead p:not(.eyebrow) {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--metal);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-help__contact {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-help__contact li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--card);
  border-bottom: 1px solid var(--line);
  word-break: break-word;
}

.page-faq .faq-help__k {
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--metal);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-template__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }

  .page-faq .faq-help__contact li {
    grid-template-columns: 84px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .6fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-faq .faq-hero__panel {
    margin-top: 28px;
  }

  .page-faq .faq-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0;
    align-items: start;
  }

  .page-faq .faq-row__action {
    padding-left: 42px;
    border-left: 1px dashed var(--line-strong);
  }

  .page-faq .faq-row__action::before {
    left: 16px;
  }

  .page-faq .faq-row__symptom {
    padding-right: 26px;
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    align-items: start;
  }

  .page-faq .faq-steps__sticky {
    position: sticky;
    top: 32px;
  }

  .page-faq .faq-locate__card {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    align-items: center;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-step {
    padding: 26px 28px 28px;
  }

  .page-faq .faq-acc__item[open] .faq-acc__summary {
    padding: 18px 24px;
  }

  .page-faq .faq-acc__body {
    padding: 0 24px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-copy {
    transition: none;
  }
}
<<<END>>>