.page-faq {
  --faq-line: 1px solid var(--steel);
  --faq-rail-w: 232px;
}

/* ===== 首屏 ===== */
.page-faq .faq-mast {
  padding: clamp(24px, 4.6vw, 60px) 0 clamp(22px, 3.4vw, 44px);
  background:
    linear-gradient(180deg, rgba(28, 78, 128, .08) 0%, rgba(232, 239, 247, .55) 62%, rgba(251, 252, 254, 0) 100%);
}

.page-faq .faq-mast .breadcrumbs {
  margin: 0 0 clamp(18px, 2.6vw, 30px);
}

.page-faq .faq-mast__eyebrow {
  margin: 0;
  color: var(--orange);
}

.page-faq .faq-mast__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 62px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--deep);
}

.page-faq .faq-mast__lede {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-mast__grid {
  align-items: start;
}

.page-faq .faq-mast__panel {
  position: relative;
  margin-top: 26px;
  padding: 22px 22px 20px;
  border-radius: var(--radius-m);
  background: linear-gradient(150deg, var(--deep) 0%, var(--abyss) 100%);
  color: var(--mist);
  box-shadow: var(--shadow-deep);
  transform: rotate(-1.4deg);
}

.page-faq .faq-mast__panel .t-label {
  margin: 0;
  color: rgba(195, 212, 230, .88);
}

.page-faq .faq-facts {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-top: 12px;
  border-top: var(--rule-dark);
}

.page-faq .faq-facts li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-facts__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--neon);
}

.page-faq .faq-facts__txt {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(232, 239, 247, .86);
}

@media (min-width: 940px) {
  .page-faq .faq-mast__panel {
    margin-top: 6px;
  }
}

/* ===== 主体两栏 ===== */
.page-faq .faq-body {
  padding: clamp(34px, 5.6vw, 76px) 0 clamp(28px, 4vw, 56px);
  background: var(--paper);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

/* 左侧目录 */
.page-faq .faq-rail__label {
  margin: 0 0 12px;
  color: var(--ink);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 12px;
  border-left: 2px solid var(--steel);
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: border-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-left-color: var(--orange);
  color: var(--deep);
  background: rgba(255, 106, 23, .07);
}

.page-faq .faq-rail__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
}

@media (min-width: 940px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    column-gap: clamp(36px, 5vw, 84px);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }
}

/* ===== 问答分组 ===== */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(38px, 5.4vw, 68px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 110px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 16px;
  background: var(--plate-paper);
  border: var(--faq-line);
  border-radius: var(--radius-s);
  box-shadow: var(--shadow-plate);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-group:target .faq-group__head {
  border-color: var(--orange);
  box-shadow: 0 20px 38px -30px rgba(255, 106, 23, .85);
}

.page-faq .faq-group__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(18px, 2.3vw, 25px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--deep);
}

/* 折叠问答 */
.page-faq .faq-group .accordion {
  margin-top: 6px;
}

.page-faq .accordion__item {
  border-bottom: var(--faq-line);
}

.page-faq .accordion__item:first-child {
  border-top: var(--faq-line);
}

.page-faq .accordion__trigger {
  display: flex;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  padding: 17px 4px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--deep);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .accorion__index,
.page-faq .accordion__index {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-faq .faq-q {
  flex: 1;
  min-width: 0;
}

.page-faq .accordion__icon {
  position: relative;
  flex: none;
  width: 15px;
  height: 15px;
  margin-left: auto;
  align-self: center;
}

.page-faq .accordion__icon::before,
.page-faq .accordion__icon::after {
  content: "";
  position: absolute;
  background: var(--orange);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .accordion__icon::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .accordion__icon::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .accordion__item[data-open] .accordion__icon::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .accordion__panel-inner {
  padding: 0 4px 20px 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

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

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

.page-faq .accordion__panel-inner a {
  color: var(--forest);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .accordion__panel-inner a:hover {
  color: var(--orange);
}

@media (min-width: 700px) {
  .page-faq .accordion__panel-inner {
    padding-left: 44px;
    padding-right: 12px;
  }
}

/* 配图 */
.page-faq .faq-figure {
  margin: 24px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--faq-line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-plate);
  object-fit: cover;
}

.page-faq .faq-figure .caption {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink);
}

.page-faq .faq-figure--square {
  max-width: 520px;
}

/* ===== 收束区 ===== */
.page-faq .faq-cta {
  padding: clamp(28px, 5vw, 68px) 0;
  background: var(--mist);
}

.page-faq .faq-cta__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.2vw, 54px);
  border-radius: var(--radius-l);
  background: linear-gradient(152deg, var(--deep) 0%, var(--abyss) 58%, var(--mid) 100%);
  color: var(--mist);
  box-shadow: var(--shadow-deep);
}

.page-faq .faq-cta__panel::after {
  content: "";
  position: absolute;
  top: -90px;
  right: -70px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 23, .45), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-cta__eyebrow {
  position: relative;
  margin: 0;
  color: var(--neon);
}

.page-faq .faq-cta__title {
  position: relative;
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 44px);
  line-height: 1.15;
  color: var(--paper);
}

.page-faq .faq-cta__text {
  position: relative;
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: rgba(232, 239, 247, .88);
}

.page-faq .faq-cta__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-cta__meta {
  position: relative;
  list-style: none;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: var(--rule-dark);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
}

.page-faq .faq-cta__meta li {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-cta__meta span {
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(195, 212, 230, .78);
}

.page-faq .faq-cta__meta b {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--neon);
}

@media (min-width: 760px) {
  .page-faq .faq-cta__meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ===== 动效降级 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-mast__panel {
    transform: none;
  }

  .page-faq .faq-rail__link,
  .page-faq .accordion__trigger,
  .page-faq .accordion__icon::before,
  .page-faq .accordion__icon::after {
    transition: none;
  }
}