.page-faq {
  --faq-line: rgba(58, 70, 64, .72);
  --faq-glow: rgba(198, 255, 61, .15);
  --faq-panel: rgba(16, 19, 18, .94);
  background: var(--ink-deep);
  color: var(--white);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 110px);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(34px, 6vw, 84px) 0 clamp(26px, 4.5vw, 52px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -16%;
  width: min(660px, 84%);
  aspect-ratio: 1 / .8;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 62% 36%, var(--faq-glow), transparent 64%),
    linear-gradient(152deg, rgba(30, 58, 47, .95), rgba(11, 31, 24, 0) 74%);
  transform: rotate(-9deg);
  z-index: -1;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(420px, 52%);
  height: 5px;
  background: linear-gradient(90deg, var(--lime), rgba(255, 122, 26, .6) 62%, transparent);
  clip-path: polygon(0 62%, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(22px, 4vw, 42px);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--gray);
}

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

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: end;
}

.page-faq .faq-hero__lead .label-tag {
  display: inline-block;
}

.page-faq .faq-hero__lead .display-title {
  margin: 16px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(33px, 6.4vw, 66px);
  line-height: 1.02;
  letter-spacing: -.015em;
  color: var(--white);
  max-width: 15em;
}

.page-faq .faq-hero__lead .lede {
  margin: 0;
  max-width: 38em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--gray);
}

.page-faq .faq-hero__meter .data-panel {
  display: grid;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: linear-gradient(158deg, rgba(30, 58, 47, .92), var(--faq-panel));
  box-shadow: var(--lift);
  transform: rotate(-1.1deg);
}

.page-faq .faq-hero__meter .data-panel__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 11px;
  border-bottom: 1px dashed rgba(58, 70, 64, .68);
}

.page-faq .faq-hero__meter .data-panel__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-hero__meter .data-panel__label {
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--gray);
}

.page-faq .faq-hero__meter .data-panel__num {
  font-family: var(--font-data);
  font-weight: 600;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-faq .faq-hero__meter .data-panel__unit {
  margin-left: 4px;
  font-size: .46em;
  font-weight: 500;
  color: var(--gray);
}

/* ---------- 主题标签云 ---------- */

.page-faq .faq-board {
  padding-top: clamp(10px, 2vw, 22px);
}

.page-faq .faq-cloud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-bottom: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-cloud .segmented__tab {
  appearance: none;
  -webkit-appearance: none;
  margin-top: 0;
  padding: 10px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-pill);
  background: rgba(30, 58, 47, .68);
  color: var(--white);
  font-family: inherit;
  font-size: clamp(13px, 1.5vw, 15px);
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.2;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.page-faq .faq-cloud .segmented__tab:nth-child(3n + 1) {
  margin-top: 7px;
}

.page-faq .faq-cloud .segmented__tab:nth-child(3n + 2) {
  margin-top: -6px;
  padding: 12px 26px;
}

.page-faq .faq-cloud .segmented__tab:nth-child(3n) {
  padding: 9px 16px;
}

.page-faq .faq-cloud .segmented__tab:hover {
  border-color: var(--lime);
  color: var(--lime);
}

.page-faq .faq-cloud .segmented__tab:focus-visible {
  outline: 2px solid var(--cool);
  outline-offset: 2px;
}

.page-faq .faq-cloud .segmented__tab[aria-selected="true"],
.page-faq .faq-cloud .segmented__tab.is-active {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink-deep);
}

/* ---------- 问答面板 ---------- */

.page-faq .faq-panel {
  display: block;
  padding: clamp(28px, 5vw, 56px) 0 0;
}

.page-faq .faq-panel[hidden],
.page-faq .faq-panel[aria-hidden="true"] {
  display: none;
}

.page-faq .faq-panel__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 16px;
  align-items: start;
  margin-bottom: clamp(20px, 3.2vw, 34px);
}

.page-faq .faq-panel__head .chapter-num {
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--orange);
  padding-top: 6px;
}

.page-faq .faq-panel__head .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .faq-panel__desc {
  margin: 10px 0 0;
  max-width: 36em;
  font-size: clamp(14px, 1.6vw, 15.5px);
  line-height: 1.7;
  color: var(--gray);
}

.page-faq .faq-panel__head .chapter-rule {
  grid-column: 1 / -1;
  display: block;
  width: 92px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--lime), rgba(255, 122, 26, 0));
}

.page-faq .faq-panel__body {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

/* ---------- 问答条目 ---------- */

.page-faq .qa-list {
  position: relative;
  display: grid;
  border-left: 2px solid rgba(198, 255, 61, .22);
  padding-left: clamp(14px, 2.4vw, 26px);
}

.page-faq .qa-item {
  position: relative;
  padding: clamp(13px, 2vw, 19px) 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .qa-item:first-child {
  border-top: 1px solid var(--faq-line);
}

.page-faq .qa-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(14px, 2.4vw, 26px) - 3px);
  top: 50%;
  width: 4px;
  height: 0;
  background: var(--lime);
  transform: translateY(-50%) skewY(-14deg);
  transition: height 200ms ease;
}

.page-faq .qa-item:hover::before,
.page-faq .qa-item[open]::before {
  height: 62%;
}

.page-faq .qa-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.9vw, 17.5px);
  font-weight: 600;
  line-height: 1.52;
  color: var(--white);
  transition: color 180ms ease;
}

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

.page-faq .qa-item__q:hover {
  color: var(--lime);
}

.page-faq .qa-item__q:focus-visible {
  outline: 2px solid var(--cool);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.page-faq .qa-item__num {
  font-family: var(--font-data);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--orange);
  padding-top: 3px;
  font-variant-numeric: tabular-nums;
}

.page-faq .qa-item__text {
  min-width: 0;
}

.page-faq .qa-item__mark {
  position: relative;
  align-self: center;
  width: 16px;
  height: 16px;
  flex: none;
}

.page-faq .qa-item__mark::before,
.page-faq .qa-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--lime);
  transform: translate(-50%, -50%);
  transition: transform 200ms ease, opacity 200ms ease;
}

.page-faq .qa-item__mark::before {
  width: 14px;
  height: 2px;
}

.page-faq .qa-item__mark::after {
  width: 2px;
  height: 14px;
}

.page-faq .qa-item[open] .qa-item__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa-item__a {
  margin-left: clamp(24px, 3vw, 32px);
  padding: 10px 0 4px;
  max-width: 40em;
  font-size: clamp(14.5px, 1.7vw, 16px);
  line-height: 1.8;
  color: var(--gray);
  animation: faq-open 220ms ease both;
}

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

.page-faq .qa-item__a .link {
  color: var(--cool);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 配图 ---------- */

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

.page-faq .faq-figure--mid {
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-faq .faq-figure .figure__media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--ink-carbon);
}

.page-faq .faq-figure .figure__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, rgba(198, 255, 61, .1), transparent 56%);
  pointer-events: none;
}

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

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--gray);
}

/* ---------- 客服邮箱复制 ---------- */

.page-faq .contact-mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  padding: 13px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: rgba(30, 58, 47, .5);
}

.page-faq .contact-mail__addr {
  font-family: var(--font-data);
  font-size: 13.5px;
  color: var(--cool);
  word-break: break-all;
}

.page-faq .contact-mail .copy-btn {
  appearance: none;
  -webkit-appearance: none;
  padding: 8px 18px;
  border: 1px solid var(--lime);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--lime);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-faq .contact-mail .copy-btn:hover {
  background: var(--lime);
  color: var(--ink-deep);
}

.page-faq .contact-mail .copy-btn.is-copied {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-deep);
}

/* ---------- 下一步 ---------- */

.page-faq .faq-next {
  margin-top: clamp(36px, 6vw, 74px);
}

.page-faq .faq-next__inner {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, rgba(30, 58, 47, .9), var(--faq-panel));
}

.page-faq .faq-next__inner::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -78%;
  width: 340px;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(198, 255, 61, .17), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-next__copy {
  position: relative;
}

.page-faq .faq-next__copy .section-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.2;
  color: var(--white);
}

.page-faq .faq-next__copy .muted {
  margin: 0;
  max-width: 40em;
  font-size: clamp(14px, 1.6vw, 15.5px);
  line-height: 1.72;
  color: var(--gray);
}

.page-faq .faq-next__links {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-next__cta {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-faq .faq-next__cta--solid {
  background: var(--lime);
  color: var(--ink-deep);
}

.page-faq .faq-next__cta--solid:hover {
  background: var(--orange);
  color: var(--ink-deep);
}

.page-faq .faq-next__cta--ghost {
  border-color: var(--stone);
  color: var(--white);
}

.page-faq .faq-next__cta--ghost:hover {
  border-color: var(--lime);
  color: var(--lime);
}

.page-faq .faq-next__cta:hover {
  transform: translateY(-2px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.38fr) minmax(0, .86fr);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-panel__body--with-figure {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .82fr);
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (max-width: 620px) {
  .page-faq .faq-hero__meter .data-panel {
    transform: none;
  }

  .page-faq .faq-cloud .segmented__tab:nth-child(3n + 1),
  .page-faq .faq-cloud .segmented__tab:nth-child(3n + 2) {
    margin-top: 0;
  }

  .page-faq .qa-item__q {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
  }

  .page-faq .qa-item__a {
    margin-left: 0;
  }

  .page-faq .qa-list {
    padding-left: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item__a {
    animation: none;
  }

  .page-faq .qa-item::before,
  .page-faq .qa-item__mark::before,
  .page-faq .qa-item__mark::after,
  .page-faq .faq-next__cta,
  .page-faq .faq-cloud .segmented__tab {
    transition: none;
  }

  .page-faq .faq-next__cta:hover {
    transform: none;
  }
}