.page-faq {
  --faq-sticky-top: 104px;
  --faq-pad: clamp(18px, 3.6vw, 26px);
  --faq-panel: rgba(10, 31, 26, 0.72);
  --faq-mesh: rgba(30, 90, 76, 0.42);
  --faq-answer-size: 14.5px;
}

/* 面包屑 */
.page-faq .breadcrumbs {
  padding-block: 16px 4px;
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: 28px 36px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -1px;
  background-image:
    linear-gradient(to right, var(--faq-mesh) 1px, transparent 1px),
    linear-gradient(to bottom, var(--faq-mesh) 1px, transparent 1px);
  background-size: 68px 68px;
  opacity: 0.28;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -90px;
  width: 240px;
  height: 460px;
  background: var(--orange);
  opacity: 0.09;
  transform: rotate(17deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 72ch;
}

.page-faq .faq-hero__title {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(29px, 6.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--paper);
}

.page-faq .faq-hero__text {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  max-width: 60ch;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 28px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .faq-hero__meta .num {
  color: var(--orange);
  font-size: 16px;
  margin-right: 4px;
}

/* 快速排查 */
.page-faq .faq-triage {
  padding-block: 40px 44px;
  position: relative;
}

.page-faq .faq-triage__note {
  margin: 10px 0 22px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.7;
}

.page-faq .faq-tiles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-tile {
  position: relative;
  padding: var(--faq-pad);
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-tile:hover {
  border-color: var(--cyan);
  background: var(--ink-600);
}

.page-faq .faq-tile__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.page-faq .faq-tile__num {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-tile__icon {
  width: 22px;
  height: 22px;
  color: var(--cyan);
  flex: none;
}

.page-faq .faq-tile__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  line-height: 1.45;
}

.page-faq .faq-tile__text {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.7;
}

.page-faq .faq-tile__link {
  display: inline-block;
  color: var(--cyan);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-bottom: 1px solid rgba(123, 245, 214, 0.4);
  padding-bottom: 2px;
}

.page-faq .faq-tile__link:hover,
.page-faq .faq-tile__link:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-triage__aside {
  margin-top: 26px;
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure .figure__media {
  --figure-ratio: 3 / 4;
}

.page-faq .faq-figure--tall .figure__media {
  --figure-ratio: 3 / 4;
}

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

.page-faq .faq-figure .figure__cap {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

/* 问答主体 */
.page-faq .faq-body {
  padding-block: 8px 48px;
  position: relative;
}

.page-faq .faq-index {
  margin-bottom: 26px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-faq .faq-index__inner {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-index__heading {
  display: none;
}

.page-faq .faq-index__group {
  display: flex;
  align-items: center;
}

.page-faq .faq-index__group-title {
  display: none;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
}

.page-faq .faq-index__list li {
  flex: none;
}

.page-faq .faq-index__link {
  display: block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-answers__title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.4vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
  line-height: 1.3;
}

.page-faq .faq-group {
  margin-bottom: 34px;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.4vw, 21px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-group__tag {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-group__title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* 手风琴 */
.page-faq .faq-item {
  position: relative;
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-700);
  scroll-margin-top: 100px;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-item[open] {
  border-color: var(--cyan);
  background: var(--ink-600);
}

.page-faq .faq-item[open]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--cyan);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-item__num {
  flex: none;
  padding-top: 3px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-faq .faq-item__title {
  flex: 1;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
  letter-spacing: -0.005em;
}

.page-faq .faq-item__sign {
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__sign {
  transform: rotate(45deg);
  background: var(--cyan);
  color: var(--ink-900);
  border-color: var(--cyan);
}

.page-faq .faq-answer {
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: var(--faq-answer-size);
  line-height: 1.78;
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
}

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

.page-faq .faq-answer ul {
  margin: 0 0 12px;
  padding-left: 18px;
}

.page-faq .faq-answer li {
  margin-bottom: 7px;
}

.page-faq .faq-answer li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-answer strong {
  color: var(--paper);
  font-weight: 700;
}

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

/* 三步清单 */
.page-faq .faq-steps {
  padding-block: 44px;
  background: var(--ink-700);
  border-block: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: -60px;
  bottom: -120px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: var(--violet);
  opacity: 0.07;
  pointer-events: none;
}

.page-faq .faq-steps .section-head {
  position: relative;
  z-index: 1;
}

.page-faq .faq-steps__list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 24px 0 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-steps__item {
  background: var(--ink-800);
  padding: 20px 20px 22px;
}

.page-faq .faq-steps__num {
  display: block;
  font-size: 24px;
  line-height: 1;
  color: var(--orange);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.page-faq .faq-steps__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-faq .faq-steps__text {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.72;
}

.page-faq .faq-steps__hint {
  position: relative;
  z-index: 1;
  margin: 20px 0 0;
  font-size: 13px;
  color: var(--muted);
}

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

/* 联系 */
.page-faq .faq-contact {
  padding-block: 48px 56px;
  scroll-margin-top: 96px;
}

.page-faq .faq-contact__title {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.8vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .faq-contact__text {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  max-width: 52ch;
}

.page-faq .faq-contact__note {
  margin: 0 0 16px;
  padding: 12px 14px;
  border-left: 2px solid var(--orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(242, 166, 90, 0.08);
  color: var(--paper);
  font-size: 12.5px;
  line-height: 1.7;
}

.page-faq .faq-contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  font-size: 13px;
}

.page-faq .faq-contact__links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(123, 245, 214, 0.4);
  padding-bottom: 2px;
}

.page-faq .faq-contact__links a:hover,
.page-faq .faq-contact__links a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-contact__panel {
  margin-top: 26px;
  padding: var(--faq-pad);
  background: var(--ink-600);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-contact__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-block: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__item:first-child {
  padding-top: 0;
}

.page-faq .faq-contact__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-contact__value {
  color: var(--paper);
  font-size: 14.5px;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-contact__value.num {
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-faq .faq-contact__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

/* 桌面布局 */
@media (min-width: 720px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-tiles {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .page-faq .breadcrumbs {
    padding-block: 20px 6px;
  }

  .page-faq .faq-hero {
    padding-block: 40px 52px;
  }

  .page-faq .faq-triage__grid {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: calc(var(--gap) * 2);
    align-items: start;
  }

  .page-faq .faq-tiles {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-tile:nth-child(2) {
    margin-left: 26px;
  }

  .page-faq .faq-tile:nth-child(3) {
    margin-left: 10px;
  }

  .page-faq .faq-triage__aside {
    margin-top: 0;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
    overflow: visible;
    padding-bottom: 0;
    margin-bottom: 0;
    border-right: 1px solid var(--line);
    padding-right: 20px;
  }

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

  .page-faq .faq-index__heading {
    display: block;
    margin: 0 0 16px;
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--muted);
  }

  .page-faq .faq-index__group {
    display: block;
    margin-bottom: 18px;
  }

  .page-faq .faq-index__group-title {
    display: block;
    margin: 0 0 8px;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--orange);
  }

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

  .page-faq .faq-index__link {
    padding: 5px 0 5px 12px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    font-size: 13px;
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: transparent;
    color: var(--cyan);
    border-left-color: var(--cyan);
  }

  .page-faq .faq-body__grid {
    display: grid;
    grid-template-columns: 4fr 8fr;
    gap: calc(var(--gap) * 2);
    align-items: start;
  }

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

  .page-faq .faq-item__title {
    font-size: 16px;
  }

  .page-faq .faq-answer {
    padding: 0 22px 20px;
    font-size: 15px;
  }

  .page-faq .faq-contact__grid {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: calc(var(--gap) * 2);
    align-items: start;
  }

  .page-faq .faq-contact__panel {
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tile,
  .page-faq .faq-item,
  .page-faq .faq-item__sign,
  .page-faq .faq-index__link {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>
</main>