.page-faq {
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-faq .breadcrumbs {
  padding-top: clamp(14px, 2.4vw, 24px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background:
    radial-gradient(120% 150% at 10% 0%, rgba(30, 66, 52, 0.92) 0%, rgba(11, 31, 23, 0) 64%),
    var(--ink);
  border-bottom: 1px solid var(--line);
  padding: clamp(20px, 3.6vw, 40px) 0 clamp(18px, 3vw, 30px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.75rem, 4.4vw, 3rem);
  line-height: 1.28;
  letter-spacing: 0.01em;
  margin: 0;
  max-width: 22ch;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(0.95rem, 1.6vw, 1.06rem);
  line-height: 1.85;
  color: rgba(242, 235, 221, 0.8);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.page-faq .faq-hero__meta li {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: rgba(232, 241, 236, 0.86);
  background: rgba(6, 18, 13, 0.42);
}

.page-faq .faq-hero__meta .num {
  color: var(--yellow);
  font-size: 1.05rem;
  margin-right: 4px;
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 6px;
}

.page-faq .chip-filter__btn {
  font-family: var(--font-sans);
  font-size: 0.83rem;
  letter-spacing: 0.04em;
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--data);
  cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .chip-filter__btn:hover {
  border-color: var(--yellow);
  color: var(--yellow);
}

.page-faq .chip-filter__btn[aria-pressed="true"] {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--ink-deep);
  font-weight: 600;
}

.page-faq .chip-filter__btn:focus-visible {
  outline: 2px solid var(--yellow);
  outline-offset: 2px;
}

/* ---------- 布局：索引 + 问答 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  padding-top: clamp(24px, 4vw, 44px);
}

.page-faq .faq-index {
  border-left: 2px solid var(--yellow);
  padding-left: 16px;
}

.page-faq .faq-index__kicker {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  color: var(--yellow);
}

.page-faq .faq-index__note {
  margin: 0 0 14px;
  font-size: 0.86rem;
  line-height: 1.75;
  color: rgba(232, 241, 236, 0.66);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-faq .faq-index__list li {
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  color: var(--data);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 160ms var(--ease), transform 160ms var(--ease);
}

.page-faq .faq-index__list a:hover {
  color: var(--yellow);
  transform: translateX(2px);
}

.page-faq .faq-index__list .num {
  font-size: 0.95rem;
  color: var(--clay);
  letter-spacing: 0.06em;
}

.page-faq .faq-index__foot {
  margin: 16px 0 0;
  font-size: 0.84rem;
  color: rgba(232, 241, 236, 0.7);
}

.page-faq .faq-index__foot a {
  color: var(--yellow);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 178, 58, 0.5);
}

.page-faq .faq-index__foot a:hover {
  color: var(--paper);
}

/* ---------- 章节与卡片 ---------- */
.page-faq .faq-stream {
  min-width: 0;
}

.page-faq .faq-section + .faq-section {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-section__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.2rem, 2.6vw, 1.6rem);
  color: var(--paper);
}

.page-faq .faq-section__title .num {
  font-size: 1rem;
  color: var(--yellow);
  letter-spacing: 0.08em;
}

.page-faq .faq-card {
  background: var(--paper);
  color: var(--ink-deep);
  border: 1px solid var(--paper-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 200ms var(--ease), transform 200ms var(--ease);
}

.page-faq .faq-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-card__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.96rem;
  line-height: 1.6;
}

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

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

.page-faq .faq-card__qn {
  flex: 0 0 auto;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--clay);
}

.page-faq .faq-card__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-card__mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-sm);
  background: var(--yellow);
  color: var(--ink-deep);
}

.page-faq .faq-card__mark::before,
.page-faq .faq-card__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 2px;
  background: currentColor;
  transform: translateY(-50%);
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-faq .faq-card__mark::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-card[open] .faq-card__mark::after {
  transform: translateY(-50%) rotate(90deg) scaleX(0);
  opacity: 0;
}

.page-faq .faq-card__body {
  padding: 0 14px 16px;
  font-size: 0.92rem;
  line-height: 1.85;
  color: rgba(6, 18, 13, 0.82);
}

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

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

.page-faq .faq-card__body a {
  color: #1B5540;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.page-faq .faq-card__body a:hover {
  color: var(--red);
}

.page-faq .faq-card__tip {
  margin-top: 8px;
  padding-left: 10px;
  border-left: 2px solid rgba(185, 113, 82, 0.65);
  font-size: 0.84rem;
  color: rgba(6, 18, 13, 0.66);
}

/* ---------- 步骤条 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: step;
  margin: 12px 0 12px;
  padding: 0;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: step;
  padding: 0 0 16px 38px;
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-faq .faq-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  width: 26px;
  height: 22px;
  display: grid;
  place-items: center;
  font-family: var(--font-num);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink-deep);
  background: var(--yellow);
  border-radius: var(--radius-sm);
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 27px;
  bottom: 3px;
  width: 1px;
  background: rgba(6, 18, 13, 0.18);
}

.page-faq .faq-steps li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-steps li:last-child::after {
  display: none;
}

/* ---------- 图片与设备示意 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--moss);
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-size: 0.8rem;
  line-height: 1.7;
  color: rgba(232, 241, 236, 0.6);
}

.page-faq .faq-device {
  margin-top: 16px;
  padding: 12px;
  background: var(--moss);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-faq .faq-device svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-device__caption {
  margin: 8px 2px 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: rgba(232, 241, 236, 0.62);
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact {
  margin-top: 18px;
  padding: clamp(16px, 2.6vw, 24px);
  background: var(--moss);
  border: 1px solid var(--line);
  border-left: 3px solid var(--clay);
  border-radius: var(--radius);
}

.page-faq .faq-contact__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--paper);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-contact__list li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  font-size: 0.88rem;
  border-bottom: 1px dashed var(--line-soft);
  padding-bottom: 8px;
}

.page-faq .faq-contact__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-contact__key {
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-faq .faq-contact__val {
  color: var(--data);
  word-break: break-word;
}

.page-faq .faq-contact__val.num {
  font-size: 1.02rem;
  letter-spacing: 0.04em;
}

.page-faq .faq-contact__note {
  margin: 14px 0 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: rgba(232, 241, 236, 0.6);
}

/* ---------- 尾部行动 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(28px, 4vw, 46px);
  padding: clamp(20px, 3vw, 30px);
  display: grid;
  gap: 16px;
  background: var(--ink-deep);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--yellow);
  border-radius: var(--radius);
}

.page-faq .faq-cta__kicker {
  margin: 0 0 6px;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--yellow);
}

.page-faq .faq-cta__text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  line-height: 1.6;
  color: var(--paper);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-device {
    padding: 16px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .faq-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 20px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 252px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 20px;
  }

  .page-faq .faq-card__q {
    padding: 16px 18px;
    font-size: 1rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-card__mark::before,
  .page-faq .faq-card__mark::after,
  .page-faq .faq-index__list a {
    transition: none;
  }

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