.page-faq {
  --faq-hair: rgba(8, 48, 44, .16);
  --faq-soft: rgba(15, 122, 106, .08);
  background: var(--mist);
  color: var(--graphite);
  overflow-x: hidden;
}

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

.page-faq .media-frame {
  margin: 0;
  overflow: hidden;
  background: var(--night);
}

.page-faq .media-frame img {
  width: 100%;
  object-fit: cover;
}

.page-faq .media-caption {
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--gray);
  background: var(--paper);
}

.page-faq .breadcrumb {
  position: relative;
  z-index: 2;
  font-size: 12px;
  letter-spacing: .1em;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(20px, 3.4vw, 32px);
  padding: 0;
  list-style: none;
}

.page-faq .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--gray);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  color: rgba(126, 141, 150, .7);
}

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

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  text-decoration: underline;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3.6vw, 36px) 0 clamp(36px, 6vw, 76px);
  background: var(--night);
  color: var(--mist);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg,
      rgba(62, 217, 190, .13) 0 1px,
      transparent 1px 28px);
  opacity: .5;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -40%;
  width: 60vw;
  height: 60vw;
  max-width: 620px;
  max-height: 620px;
  background: radial-gradient(circle, rgba(15, 122, 106, .38) 0%, transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-title {
  margin: 0 0 18px;
  font-size: clamp(32px, 6.4vw, 62px);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--paper);
  overflow-wrap: break-word;
}

.page-faq .faq-lede {
  max-width: 48ch;
  margin: 0 0 clamp(22px, 3vw, 30px);
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(243, 247, 244, .84);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 34px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stat {
  padding-left: 12px;
  border-left: 2px solid var(--grass);
}

.page-faq .faq-stat b {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  color: var(--cyan);
}

.page-faq .faq-stat span {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(243, 247, 244, .62);
}

.page-faq .faq-hero-figure {
  border: 2px solid var(--grass);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero-figure img {
  max-height: 340px;
}

.page-faq .faq-hero-figure .media-caption {
  background: var(--grass-deep);
  color: rgba(243, 247, 244, .72);
}

/* 主体：左导航右问答 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  padding-top: clamp(32px, 5vw, 64px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-faq .faq-side {
  align-self: start;
  padding: 18px 16px;
  background: var(--paper);
  border: 2px solid var(--grass-deep);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-side-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gray);
}

.page-faq .faq-nav {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 10px;
  border-left: 2px solid transparent;
  color: var(--graphite);
  font-size: 15px;
  text-decoration: none;
  transition: background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-nav a:hover,
.page-faq .faq-nav a:focus-visible {
  background: var(--faq-soft);
  border-left-color: var(--grass);
  color: var(--grass-deep);
}

.page-faq .faq-nav a:focus-visible {
  outline: 2px solid var(--grass);
  outline-offset: 2px;
}

.page-faq .faq-nav-count {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--grass);
  background: rgba(15, 122, 106, .1);
  padding: 1px 6px;
  border-radius: 2px;
}

.page-faq .faq-side-help {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 2px solid var(--faq-hair);
}

.page-faq .faq-side-note {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gray);
}

.page-faq .faq-side-help .btn {
  display: inline-block;
  font-size: 14px;
  text-decoration: none;
}

/* 问答分组 */
.page-faq .faq-flow {
  min-width: 0;
}

.page-faq .faq-group {
  margin-bottom: clamp(34px, 5vw, 60px);
  scroll-margin-top: 100px;
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 8px 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--grass-deep);
}

.page-faq .faq-group-head .index-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--signal);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--grass-deep);
}

.page-faq .faq-group-note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gray);
}

.page-faq .faq-figure {
  margin: 20px 0 4px;
  border: 2px solid var(--grass);
  box-shadow: var(--shadow-hard);
  background: var(--paper);
}

.page-faq .faq-figure .media-caption {
  border-top: 2px solid var(--faq-hair);
}

/* 折叠问答 */
.page-faq .faq-list {
  margin-top: 4px;
}

.page-faq .qa {
  border-bottom: 2px solid var(--faq-hair);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
  transition: color .18s var(--ease);
}

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

.page-faq .qa summary::marker {
  content: "";
}

.page-faq .qa summary:hover .qa-q,
.page-faq .qa[open] .qa-q {
  color: var(--grass-deep);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--grass);
  outline-offset: 2px;
}

.page-faq .qa-mark {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 2px solid var(--grass);
  transition: background .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  background: var(--grass);
  transition: opacity .18s var(--ease), background .18s var(--ease);
}

.page-faq .qa-mark::before {
  left: 2px;
  right: 2px;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .qa-mark::after {
  top: 2px;
  bottom: 2px;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .qa[open] .qa-mark {
  background: var(--grass);
  border-color: var(--grass);
}

.page-faq .qa[open] .qa-mark::before,
.page-faq .qa[open] .qa-mark::after {
  background: var(--paper);
}

.page-faq .qa[open] .qa-mark::after {
  opacity: 0;
}

.page-faq .qa-q {
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: -.005em;
  color: var(--graphite);
  overflow-wrap: break-word;
  transition: color .18s var(--ease);
}

.page-faq .qa-a {
  margin-left: 6px;
  padding: 0 0 18px 26px;
  border-left: 2px solid var(--grass);
}

.page-faq .qa-a p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-faq .qa-a p + p {
  margin-top: .9em;
}

.page-faq .qa-a a {
  color: var(--grass);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-faq .qa .tag-amber {
  display: inline-block;
  padding: 0 6px;
  border: 2px solid var(--amber);
  background: rgba(255, 194, 75, .18);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--grass-deep);
}

/* 联系客服区 */
.page-faq .faq-contact {
  padding: clamp(34px, 5vw, 68px) 0;
  background: var(--grass-deep);
  border-top: 6px solid var(--signal);
  color: var(--mist);
}

.page-faq .faq-contact-grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-contact .eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
}

.page-faq .faq-contact-title {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-contact-text {
  max-width: 52ch;
  margin: 0 0 clamp(20px, 3vw, 28px);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(243, 247, 244, .82);
}

.page-faq .faq-contact-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact-list li {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 2px solid rgba(62, 217, 190, .3);
  background: rgba(10, 26, 42, .34);
}

.page-faq .faq-contact-label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: rgba(243, 247, 244, .58);
}

.page-faq .faq-contact-list .faq-contact-label {
  margin: 0;
}

.page-faq .faq-contact-value {
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: break-word;
}

.page-faq .faq-contact-value.numeric {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-faq .faq-contact-links {
  padding: 18px 16px;
  border: 2px solid rgba(62, 217, 190, .3);
}

.page-faq .faq-contact-links ul {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact-links a {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid rgba(62, 217, 190, .18);
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
  text-decoration: none;
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-faq .faq-contact-links li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-contact-links a:hover,
.page-faq .faq-contact-links a:focus-visible {
  color: var(--cyan);
  padding-left: 6px;
}

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

@media (min-width: 520px) {
  .page-faq .faq-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact-list li {
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }

  .page-faq .faq-contact-list .faq-contact-label {
    margin: 0;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .62fr);
    align-items: end;
  }

  .page-faq .faq-hero-figure img {
    max-height: 420px;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 268px minmax(0, 1fr);
    align-items: start;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--pod-h) + 18px);
  }

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

  .page-faq .qa-a {
    padding-left: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa-mark,
  .page-faq .qa-mark::before,
  .page-faq .qa-mark::after,
  .page-faq .qa-q,
  .page-faq .faq-nav a,
  .page-faq .faq-contact-links a {
    transition: none;
  }
}
<<<END>>>