.page-faq {
  --faq-line: rgba(147, 168, 157, 0.26);
  --faq-dim: #C9D3C6;
  background-color: var(--ink-green);
  background-image:
    linear-gradient(to right, rgba(46, 90, 76, 0.22) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46, 90, 76, 0.22) 1px, transparent 1px);
  background-size: 72px 72px;
  color: var(--cream);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 112px);
}

.page-faq a {
  text-underline-offset: 3px;
}

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-faq .faq-crumb a {
  color: var(--sage);
  text-decoration: none;
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--lime);
}

.page-faq .faq-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--track);
}

.page-faq .faq-crumb li[aria-current="page"] {
  color: var(--sand);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(30px, 5vw, 64px) 0 clamp(26px, 4vw, 46px);
}

.page-faq .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-faq h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.15rem, 7.2vw, 5.2rem);
  line-height: 1.0;
  letter-spacing: 0.015em;
  color: var(--cream);
}

.page-faq .faq-lede {
  max-width: 62ch;
  margin: 0 0 clamp(26px, 4vw, 44px);
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.75;
  color: var(--faq-dim);
}

.page-faq .symptom-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .symptom {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 146px;
  padding: 20px 20px 22px;
  background: var(--field-green);
  color: var(--cream);
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  transition: background-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .symptom::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 46px;
  height: 3px;
  background: var(--lime);
  transition: width 0.24s var(--ease);
}

.page-faq .symptom:hover,
.page-faq .symptom:focus-visible {
  background: #17402F;
}

.page-faq .symptom:hover::after,
.page-faq .symptom:focus-visible::after {
  width: 100%;
}

.page-faq .symptom:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--lime);
}

.page-faq .symptom__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--sand);
}

.page-faq .symptom__title {
  font-family: var(--font-display);
  font-size: clamp(1.24rem, 2.8vw, 1.6rem);
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-faq .symptom:hover .symptom__title {
  color: var(--lime);
}

.page-faq .symptom__note {
  margin-top: auto;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sage);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: clamp(26px, 4vw, 46px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-layout > * {
  min-width: 0;
}

.page-faq .faq-rail {
  display: grid;
  align-content: start;
  gap: 12px;
}

.page-faq .rail-card {
  padding: 16px 16px 18px;
  background: var(--field-green);
  border-left: 2px solid var(--sand);
}

.page-faq .rail-card .eyebrow {
  margin-bottom: 10px;
}

.page-faq .rail-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .rail-nav a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-height: 40px;
  padding: 8px 2px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--cream);
  text-decoration: none;
  border-bottom: 1px solid rgba(147, 168, 157, 0.16);
}

.page-faq .rail-nav a .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--sand);
}

.page-faq .rail-nav a:hover,
.page-faq .rail-nav a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-faq .rail-sub {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 13px 16px;
  background: var(--lime);
  color: var(--ink-green);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .rail-sub::after {
  content: "→";
  font-family: var(--font-mono);
}

.page-faq .rail-sub:hover,
.page-faq .rail-sub:focus-visible {
  background: #D8FF7A;
  outline: none;
}

.page-faq .rail-mail p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  word-break: break-all;
}

.page-faq .rail-mail a {
  color: var(--sand);
}

.page-faq .rail-mail a:hover,
.page-faq .rail-mail a:focus-visible {
  color: var(--lime);
}

.page-faq .rail-mail .rail-mail__note {
  margin-top: 8px;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--sage);
  word-break: normal;
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding: clamp(26px, 4vw, 46px) 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-sec:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-sec h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.65rem, 4.4vw, 2.9rem);
  line-height: 1.04;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-faq .sec-note {
  max-width: 66ch;
  margin: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--faq-dim);
}

.page-faq .sec-note a {
  color: var(--sand);
}

.page-faq .sec-note a:hover,
.page-faq .sec-note a:focus-visible {
  color: var(--lime);
}

/* ---------- 分步清单 ---------- */
.page-faq .steps {
  display: grid;
  gap: 8px;
  margin-bottom: 26px;
}

.page-faq .step {
  background: var(--field-green);
  border-left: 2px solid var(--track);
  transition: border-color 0.2s var(--ease);
}

.page-faq .step[open] {
  border-left-color: var(--lime);
}

.page-faq .step__head {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 54px;
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .step__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--sand);
}

.page-faq .step__title {
  flex: 1 1 auto;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--cream);
}

.page-faq .step__mark {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
}

.page-faq .step__mark::before,
.page-faq .step__mark::after {
  content: "";
  position: absolute;
  background: var(--sage);
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease);
}

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

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

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

.page-faq .step[open] .step__mark::before {
  background: var(--lime);
}

.page-faq .step__body {
  padding: 0 16px 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-dim);
}

.page-faq .step__body p {
  margin: 0 0 10px;
}

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

/* ---------- 图 ---------- */
.page-faq .faq-shot {
  margin: 0;
  background: var(--field-green);
}

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.03);
}

.page-faq .faq-shot figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: 0.04em;
  color: var(--sage);
}

/* ---------- 兼容矩阵 ---------- */
.page-faq .matrix-wrap {
  margin-bottom: 22px;
  overflow-x: auto;
  background: var(--field-green);
  border: 1px solid var(--faq-line);
}

.page-faq .matrix {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .matrix caption {
  caption-side: top;
  padding: 12px 14px;
  border-bottom: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-align: left;
  color: var(--sand);
}

.page-faq .matrix th,
.page-faq .matrix td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .matrix thead th {
  background: rgba(11, 33, 27, 0.55);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-faq .matrix tbody th {
  font-weight: 600;
  white-space: nowrap;
  color: var(--cream);
}

.page-faq .matrix tbody td {
  line-height: 1.65;
  color: var(--faq-dim);
}

.page-faq .matrix td.mono {
  font-family: var(--font-mono);
  color: var(--sand);
  white-space: nowrap;
}

.page-faq .matrix tbody tr:last-child th,
.page-faq .matrix tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 6px;
  border-radius: 50%;
  vertical-align: 1px;
}

.page-faq .dot--ok {
  background: var(--lime);
}

.page-faq .dot--warn {
  background: var(--amber);
}

/* ---------- 视频异常卡片 ---------- */
.page-faq .faq-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-card {
  padding: 18px 18px 20px;
  background: var(--field-green);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-faq .faq-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 1.22rem;
  line-height: 1.28;
  letter-spacing: 0.01em;
  color: var(--cream);
}

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

.page-faq .faq-card li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--faq-dim);
}

.page-faq .faq-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 2px;
  background: var(--sand);
}

/* ---------- 订阅（纸面） ---------- */
.page-faq .faq-sec--paper {
  margin-block: 10px;
  padding: clamp(24px, 3.4vw, 44px) clamp(18px, 3vw, 36px);
  background: var(--paper);
  color: var(--charcoal);
  border-top: 0;
}

.page-faq .faq-sec--paper h2 {
  color: var(--charcoal);
}

.page-faq .faq-sec--paper .eyebrow {
  color: #9A6A21;
}

.page-faq .faq-sec--paper .sec-note {
  color: #4A5449;
}

.page-faq .check-list {
  display: grid;
  gap: 0;
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.page-faq .check-list li {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(16, 22, 19, 0.14);
}

.page-faq .check-list li:last-child {
  border-bottom: 0;
}

.page-faq .check-list .mono {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: #8A6A2E;
  padding-top: 3px;
}

.page-faq .check-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--charcoal);
}

.page-faq .check-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: #4A5449;
}

.page-faq .paper-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 13px 22px;
  background: var(--charcoal);
  color: var(--paper);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .paper-cta::after {
  content: "→";
  font-family: var(--font-mono);
}

.page-faq .paper-cta:hover,
.page-faq .paper-cta:focus-visible {
  background: var(--field-green);
  color: var(--lime);
  outline: none;
}

/* ---------- 人工支持 ---------- */
.page-faq .prep-list {
  display: grid;
  gap: 0;
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.page-faq .prep-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .prep-list li:last-child {
  border-bottom: 0;
}

.page-faq .prep-check {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  background: transparent;
  border: 1px solid var(--sage);
  cursor: pointer;
}

.page-faq .prep-check:checked {
  border-color: var(--lime);
  background: rgba(200, 255, 77, 0.14);
}

.page-faq .prep-check:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--lime);
  border-bottom: 2px solid var(--lime);
  transform: rotate(42deg);
}

.page-faq .prep-check:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-faq .prep-list label {
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-dim);
  cursor: pointer;
}

.page-faq .support-box {
  padding: clamp(18px, 3vw, 28px);
  background: var(--field-green);
  border-left: 2px solid var(--lime);
}

.page-faq .support-box__lead {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-dim);
}

.page-faq .support-mail {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.4vw, 18px);
  word-break: break-all;
  color: var(--lime);
}

.page-faq .support-mail:hover,
.page-faq .support-mail:focus-visible {
  color: var(--sand);
}

.page-faq .support-phone {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.2vw, 17px);
  letter-spacing: 0.06em;
  color: var(--sand);
}

.page-faq .support-box__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--sage);
}

.page-faq .support-box__note a {
  color: var(--cream);
}

.page-faq .support-box__note a:hover,
.page-faq .support-box__note a:focus-visible {
  color: var(--lime);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .symptom-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .step__body {
    padding-left: 46px;
  }
}

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

@media (min-width: 960px) {
  .page-faq .symptom-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-faq .rail-nav {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-hero {
    padding-top: 58px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .symptom,
  .page-faq .symptom::after,
  .page-faq .step,
  .page-faq .step__mark::before,
  .page-faq .step__mark::after {
    transition: none;
  }
}
<<<END>>>