.page-faq {
  --faq-gutter: clamp(16px, 4vw, 48px);
  --faq-space: clamp(40px, 6vw, 88px);
  --faq-focus: 2px solid var(--cyan);
  position: relative;
  color: var(--paper);
  background:
    radial-gradient(120% 70% at 88% -10%, rgba(141, 44, 107, 0.28), transparent 58%),
    radial-gradient(80% 60% at 0% 44%, rgba(53, 224, 208, 0.07), transparent 55%),
    var(--ink);
}

.page-faq a:focus-visible,
.page-faq button:focus-visible,
.page-faq summary:focus-visible {
  outline: var(--faq-focus);
  outline-offset: 3px;
}

.page-faq .faq-shell {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--faq-gutter);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(24px, 4.5vw, 56px) clamp(32px, 5vw, 68px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(155, 168, 183, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(155, 168, 183, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(72% 82% at 22% 10%, rgba(0, 0, 0, 0.92), transparent 74%);
  mask-image: radial-gradient(72% 82% at 22% 10%, rgba(0, 0, 0, 0.92), transparent 74%);
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 18px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-kicker__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 224, 208, 0.16);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--sans);
  font-size: clamp(30px, 5.2vw, 62px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 28px 0 0;
  padding: 0;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-facts__item {
  padding: 12px 14px;
  background: rgba(13, 21, 36, 0.88);
}

.page-faq .faq-facts dt {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .faq-facts dd {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: clamp(18px, 2vw, 22px);
  color: var(--cyan);
  line-height: 1.2;
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 26px;
  height: 26px;
  border-right: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
}

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

.page-faq .faq-hero__media .yx-media__caption {
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 四条最常问 ---------- */
.page-faq .faq-quick {
  padding-block: clamp(32px, 5vw, 64px) 0;
}

.page-faq .faq-quick__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
}

.page-faq .faq-quick__head h2 {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-faq .faq-quick__head p {
  margin: 0;
  font-size: 14px;
  color: var(--mist);
}

.page-faq .faq-quick__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-quick__item a {
  display: block;
  height: 100%;
  padding: 16px 16px 18px;
  background: linear-gradient(165deg, rgba(17, 28, 46, 0.94), rgba(13, 21, 36, 0.7));
  border: 1px solid var(--line);
  border-top: 2px solid var(--stone);
  color: var(--paper);
  text-decoration: none;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.page-faq .faq-quick__item a:hover {
  transform: translateY(-3px);
  border-color: var(--line);
  border-top-color: var(--orange);
  box-shadow: 0 14px 26px -18px rgba(0, 0, 0, 0.9);
}

.page-faq .faq-quick__num {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-quick__q {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  padding-block: var(--faq-space);
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 10px;
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-index__list a:hover {
  color: var(--paper);
  border-left-color: var(--orange);
  background: rgba(43, 50, 58, 0.42);
}

.page-faq .faq-index__num {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-faq .faq-index__help {
  margin-top: 20px;
  padding: 16px;
  border: 1px dashed var(--stone);
  background: rgba(13, 21, 36, 0.6);
}

.page-faq .faq-index__help p {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: calc(var(--shell-top) + 24px);
}

.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(36px, 5vw, 60px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: start;
}

.page-faq .faq-sec__idx {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--orange);
  padding-top: 0.55em;
}

.page-faq .faq-sec__head h2 {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 30px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.page-faq .faq-sec__note {
  grid-column: 2;
  margin: 2px 0 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-q {
  border-top: 1px solid var(--line);
}

.page-faq .faq-sec details:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-q__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q__num {
  padding-top: 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-q__text {
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 700;
  line-height: 1.65;
  color: var(--paper);
  transition: color 0.18s ease;
}

.page-faq .faq-q__head:hover .faq-q__text {
  color: #ffffff;
}

.page-faq .faq-q__head::after {
  content: "";
  width: 12px;
  height: 12px;
  margin-top: 9px;
  background:
    linear-gradient(var(--cyan), var(--cyan)) center / 12px 2px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) center / 2px 12px no-repeat;
  transition: transform 0.22s ease;
}

.page-faq .faq-q[open] .faq-q__head::after {
  transform: rotate(45deg);
}

.page-faq .faq-q[open] .faq-q__text {
  color: #ffffff;
}

.page-faq .faq-q__body {
  padding: 0 4px 22px 28px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-q__body p {
  margin: 0 0 12px;
}

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

.page-faq .faq-q__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
}

.page-faq .faq-q__body a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 表格 ---------- */
.page-faq .faq-tablewrap {
  margin-top: 18px;
  border: 1px solid var(--line);
  background: rgba(13, 21, 36, 0.72);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tablewrap--tight {
  margin-top: 12px;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table caption {
  padding: 12px 14px;
  text-align: left;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-table thead th {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--paper);
  background: rgba(43, 50, 58, 0.55);
}

.page-faq .faq-table tbody th {
  font-weight: 600;
  color: var(--paper);
  white-space: nowrap;
}

.page-faq .faq-table td {
  color: var(--mist);
  line-height: 1.7;
}

.page-faq .faq-table tbody tr:hover th,
.page-faq .faq-table tbody tr:hover td {
  background: rgba(53, 224, 208, 0.07);
  color: var(--paper);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: 24px 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-faq .faq-figure__cap {
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 20px;
  margin-bottom: 22px;
  padding: clamp(18px, 3vw, 28px);
  background: linear-gradient(158deg, rgba(17, 28, 46, 0.96), rgba(13, 21, 36, 0.62));
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
}

.page-faq .faq-contact__label {
  margin: 0 0 4px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-contact__label + .faq-contact__label,
.page-faq .faq-contact__value + .faq-contact__label {
  margin-top: 18px;
}

.page-faq .faq-contact__value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(15px, 1.8vw, 19px);
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact__value a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(244, 239, 230, 0.28);
}

.page-faq .faq-contact__value a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-contact__value--sm {
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-contact__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 7px 14px;
  font: inherit;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(53, 224, 208, 0.42);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-copy:hover {
  background: rgba(53, 224, 208, 0.12);
  border-color: var(--cyan);
}

.page-faq .faq-contact__cta {
  margin-top: 18px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-quick__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 28px;
  }

  .page-faq .faq-contact__side {
    border-left: 1px solid var(--line-soft);
    padding-left: 24px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-quick__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, 262px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--shell-top) + 20px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__item a,
  .page-faq .faq-q__head::after,
  .page-faq .faq-index__list a,
  .page-faq .faq-q__text {
    transition: none;
  }

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