.page-faq {
  --faq-text: rgba(244, 239, 230, .80);
  --faq-text-dim: rgba(244, 239, 230, .62);
  --faq-card: rgba(11, 59, 60, .52);
  --faq-flow-gap: clamp(28px, 5vw, 68px);

  background:
    radial-gradient(1100px 560px at 84% -8%, rgba(31, 107, 255, .18), transparent 62%),
    radial-gradient(880px 520px at 6% 104%, rgba(94, 125, 90, .14), transparent 60%),
    var(--ink);
  color: var(--faq-text);
  font-family: var(--font-body);
  overflow-x: clip;
  padding-bottom: 0;
}

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

.page-faq .lead {
  color: var(--faq-text);
}

.page-faq .eyebrow {
  color: var(--stone-2);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: clip;
  padding: clamp(20px, 4vw, 44px) 0 clamp(38px, 6vw, 80px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: auto -14% -34% 38%;
  height: 72%;
  background: linear-gradient(118deg, rgba(31, 107, 255, .30), rgba(94, 125, 90, .14) 48%, rgba(242, 169, 59, .12));
  clip-path: polygon(20% 0, 100% 14%, 86% 100%, 0 76%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 54px);
  align-items: center;
}

.page-faq .faq-hero__title {
  margin: .32em 0 .48em;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(34px, 8.4vw, 80px);
  line-height: 1.08;
  letter-spacing: -.03em;
  color: var(--white);
}

.page-faq .faq-hero__title span {
  display: block;
  margin-top: .16em;
  font-weight: 700;
  font-size: clamp(22px, 4.6vw, 46px);
  letter-spacing: -.01em;
  color: var(--blue-soft);
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--faq-text-dim);
}

.page-faq .faq-hero__facts .num {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--amber);
  letter-spacing: .02em;
  margin-right: 6px;
}

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

.page-faq .faq-hero__figure .media-frame {
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow);
}

.page-faq .faq-hero__figure .img-cap {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--stone-2);
}

/* ---------- 两栏外壳 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  padding-top: clamp(10px, 2vw, 24px);
}

.page-faq .faq-rail {
  padding-top: 6px;
}

.page-faq .faq-rail .eyebrow {
  margin-bottom: 12px;
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex: none;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--faq-text-dim);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-faq .faq-rail__link .index-num {
  color: var(--moss-light);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--blue);
  color: var(--white);
  background: rgba(31, 107, 255, .12);
}

/* ---------- 章节 ---------- */
.page-faq .faq-chapter {
  padding: clamp(28px, 4.4vw, 52px) 0;
  border-top: 1px solid var(--line-2);
  scroll-margin-top: 108px;
}

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

.page-faq .faq-chapter__head {
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-faq .faq-chapter__head .eyebrow {
  margin-bottom: 10px;
}

.page-faq .faq-chapter__head .h2 {
  color: var(--white);
  font-weight: 300;
  letter-spacing: -.02em;
  line-height: 1.22;
  font-size: clamp(24px, 3.4vw, 38px);
}

.page-faq .faq-chapter__body {
  max-width: 68ch;
}

.page-faq .faq-chapter__body--wide {
  max-width: none;
}

.page-faq .faq-chapter__body > p {
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.86;
}

.page-faq .faq-chapter__body > p + p {
  margin-top: 1em;
}

.page-faq .faq-chapter__body a {
  color: var(--blue-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 157, 255, .42);
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-chapter__body a:hover {
  color: var(--white);
  border-bottom-color: var(--amber);
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  margin: clamp(18px, 2.8vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 3vw, 34px);
  align-items: start;
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-step:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--amber);
}

.page-faq .faq-step__text .h3 {
  margin: 0 0 6px;
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 600;
  color: var(--white);
  letter-spacing: .01em;
}

.page-faq .faq-step__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--faq-text);
}

.page-faq .faq-steps--tight .faq-step {
  padding: clamp(12px, 1.8vw, 18px) 0;
}

.page-faq .faq-steps--tight .faq-step__num {
  font-size: clamp(18px, 2.2vw, 24px);
  color: var(--moss-light);
}

/* ---------- 费用档位 ---------- */
.page-faq .faq-tiers {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-tier {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-top: 1px solid var(--line);
  transition: background-color 200ms var(--ease);
}

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

.page-faq .faq-tier__name {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: .01em;
}

.page-faq .faq-tier__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 500;
  line-height: 1;
  color: var(--amber);
  letter-spacing: .02em;
}

.page-faq .faq-tier__price small {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cool);
}

.page-faq .faq-tier__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.86;
  color: var(--faq-text);
}

.page-faq .faq-tier__fit {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--moss-light);
}

/* ---------- 额度刻度 ---------- */
.page-faq .faq-scale {
  margin: clamp(22px, 3vw, 32px) 0 clamp(18px, 2.6vw, 26px);
  padding: 18px clamp(14px, 2.2vw, 22px) 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--faq-card);
}

.page-faq .faq-scale__bar {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--moss-light) 48%, var(--amber) 100%);
}

.page-faq .faq-scale__marks {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--cool);
}

.page-faq .faq-scale__marks span:first-child {
  color: var(--blue-soft);
}

.page-faq .faq-scale__marks span:last-child {
  color: var(--amber);
}

/* ---------- 额度适用 ---------- */
.page-faq .faq-quota {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-quota li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-quota__range {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--blue-soft);
}

.page-faq .faq-quota__use {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-text);
}

/* ---------- 主客场分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: start;
}

.page-faq .faq-split__main > p {
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.86;
}

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

.page-faq .faq-split__figure .media-frame {
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-split__figure .img-cap {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--stone-2);
}

.page-faq .faq-twostep {
  margin: clamp(18px, 2.6vw, 26px) 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-twostep li {
  position: relative;
  padding: 16px 0 16px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-twostep li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-twostep__num {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 10px;
  border: 1px solid rgba(31, 107, 255, .5);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--blue-soft);
}

.page-faq .faq-twostep li:last-child .faq-twostep__num {
  border-color: rgba(242, 169, 59, .5);
  color: var(--amber);
}

.page-faq .faq-twostep p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--faq-text);
}

/* ---------- 支持信息 ---------- */
.page-faq .faq-support {
  margin: clamp(20px, 3vw, 28px) 0 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-support__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-support__row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-support__row p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--faq-text);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-acc {
  margin-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--line-2);
}

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

.page-faq .faq-acc__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.5vw, 16.5px);
  font-weight: 500;
  color: var(--paper);
  transition: color 180ms var(--ease);
}

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

.page-faq .faq-acc__q:hover,
.page-faq .faq-acc__q:focus-visible {
  color: var(--blue-soft);
}

.page-faq .faq-acc__icon {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  transition: border-color 200ms var(--ease), background-color 200ms var(--ease);
}

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

.page-faq .faq-acc__icon::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .faq-acc__icon::after {
  width: 1.5px;
  height: 10px;
}

.page-faq .faq-acc__item[open] .faq-acc__icon {
  border-color: var(--amber);
  background: rgba(242, 169, 59, .16);
}

.page-faq .faq-acc__item[open] .faq-acc__icon::before,
.page-faq .faq-acc__item[open] .faq-acc__icon::after {
  background: var(--amber);
}

.page-faq .faq-acc__item[open] .faq-acc__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-acc__a {
  max-width: 60ch;
  padding: 0 0 20px;
  font-size: 14.8px;
  line-height: 1.86;
  color: var(--faq-text-dim);
}

.page-faq .faq-acc__a a {
  color: var(--blue-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 157, 255, .42);
}

.page-faq .faq-acc__a a:hover {
  color: var(--white);
  border-bottom-color: var(--amber);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(30px, 5vw, 64px);
  padding: clamp(32px, 5vw, 62px) 0 clamp(40px, 6vw, 74px);
  border-top: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(11, 59, 60, .86), rgba(7, 26, 28, .92) 62%, rgba(31, 107, 255, .16));
}

.page-faq .faq-outro__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: end;
}

.page-faq .faq-outro__copy .eyebrow {
  margin-bottom: 12px;
}

.page-faq .faq-outro__copy .h2 {
  margin: 0 0 12px;
  color: var(--white);
  font-weight: 300;
  letter-spacing: -.02em;
  line-height: 1.22;
  font-size: clamp(22px, 3vw, 34px);
}

.page-faq .faq-outro__copy p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.86;
  color: var(--faq-text-dim);
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-quota li {
    grid-template-columns: minmax(140px, 190px) minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }

  .page-faq .faq-support__row {
    grid-template-columns: minmax(120px, 170px) minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }

  .page-faq .faq-outro__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, auto);
  }
}

@media (min-width: 820px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  }

  .page-faq .faq-tier {
    grid-template-columns: minmax(160px, 200px) minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
    gap: 26px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(172px, 214px) minmax(0, 1fr);
    gap: var(--faq-flow-gap);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 112px;
    align-self: start;
  }

  .page-faq .faq-rail__list {
    display: grid;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-rail__link {
    padding: 10px 12px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    white-space: normal;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--blue);
    background: rgba(31, 107, 255, .1);
  }

  .page-faq .faq-chapter {
    scroll-margin-top: 128px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-hero__grid {
    gap: clamp(40px, 5vw, 76px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}