.page-faq {
  position: relative;
  padding: 0 var(--gutter) clamp(3rem, 7vw, 6rem);
}

.page-faq .faq-shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(1.5rem, 4vw, 3rem);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(52vw, 560px);
  height: clamp(180px, 30vw, 380px);
  background: linear-gradient(128deg, var(--sea-600) 0%, var(--sea-800) 58%, var(--sea-950) 100%);
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  z-index: -1;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.4rem, 3vw, 2.4rem);
  align-items: end;
  margin-top: 1rem;
}

.page-faq .faq-hero h1 {
  margin: 0.55rem 0 0;
  font-family: var(--ff-title);
  font-weight: 800;
  font-size: clamp(2rem, 5.4vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper-050);
}

.page-faq .faq-hero .lede {
  max-width: 60ch;
  margin: 0.9rem 0 0;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.55rem;
  margin-top: 1.15rem;
}

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

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: clamp(2rem, 4vw, 3.4rem);
  }

  .page-faq .faq-hero__media {
    transform: translateY(0.6rem);
  }
}

/* ---------- 顶部索引条 ---------- */

.page-faq .faq-index {
  position: sticky;
  top: var(--bar-h);
  z-index: 15;
  margin-top: clamp(1.5rem, 4vw, 2.6rem);
  padding: 0.55rem 0;
  background: var(--sea-950);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 0.45rem;
  margin: 0;
  padding: 0.1rem 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.72rem;
  border: 1px solid var(--hair);
  color: var(--grey-100);
  font-size: 0.82rem;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color var(--dur-fast) var(--ease),
    background var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease);
}

.page-faq .faq-index__link:hover {
  border-color: var(--mint-400);
  background: rgba(43, 224, 200, 0.08);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--mint-400);
  outline-offset: 2px;
}

.page-faq .faq-index__num {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--orange-500);
}

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  margin-top: clamp(2.6rem, 6vw, 4.4rem);
  scroll-margin-top: calc(var(--bar-h) + 76px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(0.8rem, 2.4vw, 1.5rem);
  align-items: start;
  margin-bottom: 1.1rem;
}

.page-faq .faq-group__num {
  font-family: var(--ff-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.8vw, 2.5rem);
  line-height: 0.92;
  color: rgba(255, 107, 44, 0.16);
  -webkit-text-stroke: 1px var(--orange-500);
}

.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--ff-title);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.6vw, 1.85rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--paper-050);
}

.page-faq .faq-group__intro {
  max-width: 62ch;
  margin: 0.45rem 0 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--grey-400);
}

.page-faq .faq-figure {
  margin: 0 0 1.1rem;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: clamp(150px, 26vw, 240px);
  object-fit: cover;
}

/* ---------- 折叠面板 ---------- */

.page-faq .faq-panel {
  background: var(--sea-800);
  border: 1px solid var(--hair);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--hair-soft);
}

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

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr) 1.15rem;
  align-items: center;
  gap: 0.7rem;
  padding: 0.95rem clamp(0.9rem, 2vw, 1.35rem);
  cursor: pointer;
  list-style: none;
  transition: background var(--dur-fast) var(--ease);
}

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

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

.page-faq .faq-item summary:hover {
  background: rgba(43, 224, 200, 0.06);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--mint-400);
  outline-offset: -2px;
}

.page-faq .faq-item__no {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--orange-300);
}

.page-faq .faq-item__q {
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper-050);
  transition: color var(--dur-fast) var(--ease);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 1.1rem;
  height: 1.1rem;
  justify-self: end;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--mint-400);
  transition: transform var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-faq .faq-item__mark::before {
  left: 0;
  right: 0;
  top: calc(50% - 1px);
  height: 2px;
}

.page-faq .faq-item__mark::after {
  top: 0;
  bottom: 0;
  left: calc(50% - 1px);
  width: 2px;
}

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

.page-faq .faq-item[open] .faq-item__mark::before {
  background: var(--orange-500);
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--mint-400);
}

.page-faq .faq-item__body {
  margin: 0 clamp(0.9rem, 2vw, 1.35rem) 1.15rem;
  padding: 0.8rem 0 0.1rem clamp(0.85rem, 2vw, 1.1rem);
  border-left: 2px solid rgba(43, 224, 200, 0.28);
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--grey-100);
}

.page-faq .faq-item__body > p {
  margin: 0 0 0.65rem;
}

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

.page-faq .faq-item__body a {
  color: var(--orange-300);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.page-faq .faq-item__body a:hover {
  color: var(--mint-400);
}

.page-faq .faq-item__body a:focus-visible {
  outline: 2px solid var(--mint-400);
  outline-offset: 2px;
}

/* ---------- 字段网格 ---------- */

.page-faq .faq-fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.5rem;
  margin: 0.8rem 0 0;
}

.page-faq .faq-fields > div {
  padding: 0.5rem 0.65rem;
  background: rgba(6, 23, 35, 0.45);
  border: 1px solid var(--hair);
  border-left: 2px solid var(--orange-500);
}

.page-faq .faq-fields dt {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--mint-400);
}

.page-faq .faq-fields dd {
  margin: 0.22rem 0 0;
  font-size: 0.85rem;
  line-height: 1.62;
  color: var(--grey-100);
}

@media (min-width: 620px) {
  .page-faq .faq-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem 0.8rem;
  }
}

/* ---------- 联系卡 ---------- */

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.1rem;
  margin-top: 1.1rem;
  padding: clamp(1.1rem, 3vw, 1.7rem);
  background: linear-gradient(120deg, var(--sea-700) 0%, var(--sea-800) 62%, var(--sea-900) 100%);
  border: 1px solid var(--hair);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-faq .faq-contact__block .eyebrow {
  margin: 0 0 0.5rem;
}

.page-faq .faq-contact__mail,
.page-faq .faq-contact__tel {
  margin: 0;
  font-family: var(--ff-mono);
  font-size: clamp(0.92rem, 2.4vw, 1.12rem);
  line-height: 1.5;
  color: var(--paper-050);
  word-break: break-word;
}

.page-faq .faq-contact__tel {
  color: var(--orange-300);
}

.page-faq .faq-contact__note {
  margin: 0.45rem 0 0;
  font-size: 0.84rem;
  line-height: 1.72;
  color: var(--grey-400);
}

@media (min-width: 760px) {
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 2rem;
    align-items: start;
  }
}

/* ---------- 减弱动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item summary,
  .page-faq .faq-item__q,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after {
    transition: none;
  }
}
<<<END>>>