.page-faq {
  --faq-ink-soft: #C9D6EE;
  --faq-line: rgba(143, 163, 200, .22);
  --faq-line-strong: rgba(143, 163, 200, .42);
  --faq-space: clamp(72px, 10vw, 148px);
  background: var(--night);
  color: var(--paper);
}

.page-faq .crumbs {
  padding-top: clamp(18px, 3vw, 32px);
  padding-bottom: clamp(8px, 1.5vw, 16px);
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(36px, 5vw, 72px) 0 clamp(56px, 8vw, 108px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -10% -5% 0 -5%;
  background-image:
    linear-gradient(to right, rgba(143, 163, 200, .45) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143, 163, 200, .45) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .13;
  -webkit-mask-image: radial-gradient(120% 90% at 8% 0%, #000 0%, transparent 68%);
  mask-image: radial-gradient(120% 90% at 8% 0%, #000 0%, transparent 68%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 34%;
  right: -12%;
  top: clamp(120px, 16vw, 210px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--orange) 35%, rgba(0, 230, 118, .75) 78%, transparent);
  transform: rotate(-4.5deg);
  opacity: .8;
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 56px);
  align-items: start;
}

.page-faq .faq-hero__intro {
  max-width: 64ch;
  min-width: 0;
}

.page-faq .faq-hero__intro .eyebrow {
  color: var(--haze);
}

.page-faq .faq-hero__intro .display {
  margin: 18px 0 22px;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6.6vw, 4.9rem);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-hero__intro .display em {
  font-style: normal;
  color: var(--orange);
}

.page-faq .faq-hero__intro .lede {
  max-width: 56ch;
  color: var(--haze);
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.8;
}

.page-faq .faq-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 26px;
}

.page-faq .faq-link {
  position: relative;
  display: inline-block;
  padding-bottom: 4px;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line-strong);
  transition: color .24s var(--ease), border-color .24s var(--ease);
}

.page-faq .faq-link::after {
  content: "→";
  margin-left: 7px;
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-fact {
  padding: 18px 0;
  border-bottom: 1px solid var(--faq-line);
  min-width: 0;
}

.page-faq .faq-fact__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-fact:nth-child(2) .faq-fact__num {
  color: var(--green);
}

.page-faq .faq-fact__label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: .03em;
  color: var(--haze);
}

.page-faq .faq-hero__media {
  margin: clamp(32px, 5vw, 56px) 0 0;
  min-width: 0;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  filter: saturate(.7) contrast(1.05);
  clip-path: var(--cut-24);
}

/* ---------- 主体分栏 ---------- */

.page-faq .faq-body-shell {
  padding-bottom: clamp(80px, 11vw, 160px);
}

.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.page-faq .faq-aside {
  min-width: 0;
}

.page-faq .faq-main {
  min-width: 0;
}

.page-faq .toc {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 0 12px;
  border-bottom: 1px solid var(--faq-line);
  scrollbar-width: none;
}

.page-faq .toc::-webkit-scrollbar {
  display: none;
}

.page-faq .toc__title {
  display: none;
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--haze);
  text-transform: uppercase;
}

.page-faq .toc__link {
  flex: 0 0 auto;
  white-space: nowrap;
  padding: 8px 14px;
  font-size: 13px;
  letter-spacing: .03em;
  color: var(--haze);
  text-decoration: none;
  background: rgba(18, 58, 122, .55);
  clip-path: var(--cut-8);
  transition: color .24s var(--ease), background-color .24s var(--ease);
}

.page-faq .toc__link:hover,
.page-faq .toc__link:focus-visible {
  color: var(--paper);
  background: var(--panel);
}

.page-faq .toc__link[aria-current="true"] {
  color: var(--night);
  background: var(--orange);
}

/* ---------- 问题分组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-faq .faq-group + .faq-group {
  margin-top: var(--faq-space);
}

.page-faq .faq-group__head {
  position: relative;
  max-width: 48ch;
  margin-bottom: clamp(26px, 4vw, 44px);
  padding-left: clamp(16px, 2vw, 26px);
}

.page-faq .faq-group__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: linear-gradient(180deg, var(--orange), rgba(0, 230, 118, .6));
}

.page-faq .faq-group__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--orange);
}

.page-faq .faq-group__head .h-section {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-group__lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--haze);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-list {
  display: block;
}

.page-faq .faq-item {
  border-top: 1px solid var(--faq-line);
  transition: background-color .24s var(--ease);
}

.page-faq .faq-item:last-child {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item[open] {
  background: rgba(18, 58, 122, .28);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: clamp(18px, 2.4vw, 26px) clamp(14px, 1.8vw, 24px) clamp(18px, 2.4vw, 26px) clamp(14px, 1.8vw, 24px);
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.1vw, 1.5rem);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.3rem;
  line-height: 1.1;
  color: var(--orange);
  transition: transform .28s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
  transform: rotate(180deg);
}

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

.page-faq .faq-item__a {
  max-width: 62ch;
  padding: 0 clamp(14px, 1.8vw, 24px) clamp(22px, 3vw, 32px);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-item__a p {
  margin: 0;
}

/* ---------- 口径对照表 ---------- */

.page-faq .faq-scope {
  margin-top: clamp(36px, 5vw, 56px);
  padding: clamp(20px, 3vw, 32px);
  background: rgba(6, 21, 48, .72);
  border-left: 2px solid var(--orange);
  min-width: 0;
}

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

.page-faq .faq-scope__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.page-faq .faq-scope__scroll {
  overflow-x: auto;
  min-width: 0;
}

.page-faq .faq-scope__table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-scope__table th,
.page-faq .faq-scope__table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-scope__table thead th {
  font-size: 12px;
  letter-spacing: .1em;
  font-weight: 500;
  color: var(--haze);
  background: var(--panel);
  white-space: nowrap;
}

.page-faq .faq-scope__table tbody th {
  font-weight: 500;
  color: var(--paper);
  white-space: nowrap;
}

.page-faq .faq-scope__table td {
  color: var(--faq-ink-soft);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: 0 0 clamp(32px, 5vw, 48px);
  min-width: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  filter: saturate(.7);
  clip-path: var(--cut-18);
}

.page-faq .faq-figure figcaption {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 1px solid var(--faq-line-strong);
  font-size: 13px;
  line-height: 1.7;
  color: var(--haze);
}

/* ---------- 联系客服面板 ---------- */

.page-faq .faq-contact {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(26px, 4vw, 52px);
  clip-path: var(--cut-24);
}

.page-faq .faq-contact__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  letter-spacing: -.01em;
  color: var(--night);
}

.page-faq .faq-contact__list {
  margin: 0;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px dashed rgba(18, 58, 122, .3);
}

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

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

.page-faq .faq-contact__v {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__mail,
.page-faq .faq-contact__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1rem;
  color: var(--night);
  word-break: break-all;
}

.page-faq .faq-contact__v .copy-btn {
  margin-left: 10px;
  vertical-align: middle;
}

.page-faq .faq-contact__hint {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: #4A5A75;
}

.page-faq .faq-contact__note {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 2px solid var(--orange);
  font-size: 13px;
  line-height: 1.7;
  color: #4A5A75;
}

/* ---------- 相关入口 ---------- */

.page-faq .faq-more {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: clamp(32px, 5vw, 48px) 0 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-more__link {
  display: block;
  padding: 18px 4px 18px 26px;
  position: relative;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line);
  transition: color .24s var(--ease), padding-left .24s var(--ease);
}

.page-faq .faq-more__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 2px;
  background: var(--green);
  transform: translateY(-50%);
  transition: width .24s var(--ease);
}

.page-faq .faq-more__link:hover,
.page-faq .faq-more__link:focus-visible {
  color: var(--orange);
  padding-left: 34px;
}

.page-faq .faq-more__link:hover::before,
.page-faq .faq-more__link:focus-visible::before {
  width: 22px;
  background: var(--orange);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-fact {
    padding: 22px 20px;
    border-bottom: 0;
    border-right: 1px solid var(--faq-line);
  }

  .page-faq .faq-fact:first-child {
    padding-left: 0;
  }

  .page-faq .faq-fact:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: minmax(120px, 160px) minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .72fr);
    gap: clamp(40px, 5vw, 80px);
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: minmax(0, 1fr);
    border-top: 0;
    border-left: 1px solid var(--faq-line);
    padding-left: clamp(20px, 2.5vw, 36px);
  }

  .page-faq .faq-fact {
    padding: 20px 0;
    border-right: 0;
    border-bottom: 1px solid var(--faq-line);
  }

  .page-faq .faq-fact:last-child {
    padding-right: 0;
    border-bottom: 0;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(180px, 226px) minmax(0, 1fr);
    gap: clamp(48px, 6vw, 104px);
  }

  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--topbar-h) + 40px);
  }

  .page-faq .toc {
    display: block;
    overflow: visible;
    padding: 0 0 0 18px;
    border-bottom: 0;
    border-left: 1px solid var(--faq-line);
  }

  .page-faq .toc__title {
    display: block;
    margin-bottom: 14px;
  }

  .page-faq .toc__link {
    display: block;
    white-space: normal;
    padding: 9px 0 9px 12px;
    background: none;
    clip-path: none;
    border-left: 2px solid transparent;
    margin-left: -20px;
    transition: color .24s var(--ease), border-color .24s var(--ease);
  }

  .page-faq .toc__link:hover,
  .page-faq .toc__link:focus-visible {
    color: var(--paper);
    background: none;
    border-left-color: var(--faq-line-strong);
  }

  .page-faq .toc__link[aria-current="true"] {
    color: var(--orange);
    background: none;
    border-left-color: var(--orange);
  }

  .page-faq .faq-main .faq-group__head {
    margin-bottom: clamp(32px, 4vw, 52px);
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-item__q {
    padding-left: 0;
    padding-right: 0;
  }

  .page-faq .faq-item__a {
    padding-left: 0;
    padding-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__q::after,
  .page-faq .faq-link,
  .page-faq .toc__link,
  .page-faq .faq-more__link {
    transition: none;
  }
}
<<<END>>>