.page-faq {
  --faq-face: #FFFFFF;
  --faq-gap: 18px;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--deep-900);
  color: var(--foam-50);
  padding: 34px 0 42px;
  border-bottom: var(--bw-bold) solid var(--ink-900);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -90px;
  width: 220px;
  height: 220px;
  background: repeating-linear-gradient(
    115deg,
    var(--coral-500) 0 10px,
    transparent 10px 26px
  );
  opacity: 0.35;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero .eyebrow {
  color: var(--coral-500);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--foam-50);
  max-width: 18ch;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 52ch;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: rgba(247, 245, 239, 0.86);
}

.page-faq .faq-hero__note {
  margin: 18px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--sand-400);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--deep-300);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: var(--bw-bold) solid var(--ink-900);
  box-shadow: 8px 8px 0 var(--coral-500);
  background: var(--deep-700);
}

.page-faq .faq-hero__figure .media__caption {
  padding: 8px 12px;
  font-size: var(--fs-12);
  color: var(--deep-300);
  background: var(--deep-900);
  border-top: var(--bw) solid var(--deep-700);
}

/* ---------- 四格现象入口 ---------- */
.page-faq .faq-index {
  padding: 44px 0 8px;
}

.page-faq .faq-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 24px;
}

.page-faq .faq-pick {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 16px 18px;
  background: var(--faq-face);
  border: var(--bw-bold) solid var(--ink-900);
  box-shadow: var(--shadow-hard);
  text-decoration: none;
  color: var(--ink-900);
  transition: transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-faq .faq-pick:hover,
.page-faq .faq-pick:focus-visible {
  border-color: var(--coral-500);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-raise);
}

.page-faq .faq-pick__num {
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--clay-500);
}

.page-faq .faq-pick__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-17);
  line-height: 1.45;
}

.page-faq .faq-pick__meta {
  margin-top: 2px;
  padding-top: 8px;
  border-top: 2px solid var(--deep-300);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--rock-400);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-list {
  padding: 40px 0 8px;
}

.page-faq .faq-list__stack {
  margin-top: 24px;
}

.page-faq .faq-item {
  background: var(--faq-face);
  border: var(--bw-bold) solid var(--ink-900);
  box-shadow: var(--shadow-hard);
  margin-bottom: var(--faq-gap);
  scroll-margin-top: 84px;
}

.page-faq .faq-item__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
  background: var(--faq-face);
  transition: background var(--dur) var(--ease);
}

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

.page-faq .faq-item__summary:focus-visible {
  outline: var(--bw-bold) solid var(--coral-500);
  outline-offset: 2px;
}

.page-faq .faq-item[open] .faq-item__summary {
  background: var(--coral-200);
  border-bottom: var(--bw-bold) solid var(--ink-900);
}

.page-faq .faq-item__num {
  font-size: var(--fs-14);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--coral-500);
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--ink-900);
}

.page-faq .faq-item__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.6vw, 1.4rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-faq .faq-item__sign {
  position: relative;
  width: 26px;
  height: 26px;
  flex: none;
  background: var(--sand-400);
  border: var(--bw) solid var(--ink-900);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink-900);
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__sign::before {
  width: 12px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  width: 2px;
  height: 12px;
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-item__body {
  padding: 18px 14px 22px;
}

.page-faq .faq-item__symptom {
  margin: 0 0 18px;
  padding: 10px 12px;
  background: var(--foam-50);
  border-left: 4px solid var(--coral-500);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--ink-900);
}

.page-faq .faq-item__label {
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--deep-700);
}

.page-faq .faq-steps {
  position: relative;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 10px;
  width: 2px;
  background: var(--deep-300);
}

.page-faq .faq-steps li {
  position: relative;
  padding: 0 0 14px 40px;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--ink-900);
}

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

.page-faq .faq-steps__idx {
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  background: var(--faq-face);
  border: var(--bw) solid var(--ink-900);
  font-size: var(--fs-12);
  font-weight: 600;
  color: var(--clay-500);
}

.page-faq .faq-item__result {
  margin: 0;
  padding: 12px 14px;
  background: var(--foam-50);
  border: var(--bw) solid var(--moss-500);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--ink-900);
}

.page-faq .faq-item__media {
  margin: 18px 0 0;
  border: var(--bw-bold) solid var(--ink-900);
  background: var(--foam-50);
}

.page-faq .faq-item__media .media__caption {
  padding: 8px 12px;
  font-size: var(--fs-12);
  color: var(--rock-400);
  border-top: var(--bw) solid var(--ink-900);
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-help {
  margin-top: 46px;
  padding: 44px 0 40px;
  background: var(--deep-900);
  color: var(--foam-50);
  border-top: var(--bw-bold) solid var(--ink-900);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 28px;
}

.page-faq .faq-help__eyebrow {
  color: var(--coral-500);
}

.page-faq .faq-help__title {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.4vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--foam-50);
}

.page-faq .faq-help__text {
  margin: 0 0 22px;
  max-width: 46ch;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: rgba(247, 245, 239, 0.84);
}

.page-faq .faq-help__label {
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--sand-400);
}

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

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: rgba(247, 245, 239, 0.82);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  background: var(--coral-500);
}

.page-faq .faq-help__card {
  padding: 20px 18px 22px;
  background: var(--deep-700);
  border: var(--bw-bold) solid var(--ink-900);
  box-shadow: 8px 8px 0 var(--coral-500);
}

.page-faq .faq-help__card-label {
  margin: 0 0 8px;
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--deep-300);
}

.page-faq .faq-help__mail {
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: var(--bw) solid var(--deep-900);
  font-size: clamp(0.95rem, 2.6vw, 1.15rem);
  font-weight: 600;
  color: var(--sand-400);
  word-break: break-all;
}

.page-faq .faq-help__dl {
  margin: 0 0 20px;
  display: grid;
  gap: 12px;
}

.page-faq .faq-help__dl-row {
  display: grid;
  gap: 2px;
}

.page-faq .faq-help__dl dt {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--coral-200);
}

.page-faq .faq-help__dl dd {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--foam-50);
}

.page-faq .faq-help__btn {
  display: inline-block;
  text-decoration: none;
}

.page-faq .faq-help__fine {
  margin: 14px 0 0;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--deep-300);
}

.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: var(--bw) solid var(--deep-700);
}

.page-faq .faq-help__link {
  font-size: var(--fs-14);
  color: var(--foam-50);
  text-decoration: none;
  border-bottom: 2px solid var(--coral-500);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-help__link:hover,
.page-faq .faq-help__link:focus-visible {
  color: var(--sand-400);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-item__summary {
    padding: 18px 20px;
    gap: 16px;
  }

  .page-faq .faq-item__body {
    padding: 22px 20px 26px;
  }

  .page-faq .faq-help__card {
    padding: 24px 22px 26px;
  }

  .page-faq .faq-help__dl-row {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 10px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 46px 0 56px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
    gap: 40px;
  }

  .page-faq .faq-hero__figure {
    align-self: stretch;
  }

  .page-faq .faq-index {
    padding: 58px 0 10px;
  }

  .page-faq .faq-list {
    padding: 54px 0 10px;
  }

  .page-faq .faq-help {
    margin-top: 58px;
    padding: 58px 0 50px;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-pick {
    min-height: 168px;
    justify-content: flex-start;
    padding: 18px 18px 20px;
  }

  .page-faq .faq-pick__meta {
    margin-top: auto;
  }

  .page-faq .faq-item__media {
    max-width: 620px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-pick,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-help__link,
  .page-faq .faq-item__summary {
    transition: none;
  }

  .page-faq .faq-pick:hover,
  .page-faq .faq-pick:focus-visible {
    transform: none;
  }
}
<<<END>>>