.page-faq {
  --faq-arc-lg: clamp(30px, 4.5vw, 56px);
  --faq-arc-sm: clamp(16px, 2vw, 24px);
  --faq-dim: rgba(246, 245, 239, .74);
  --faq-dim-2: rgba(246, 245, 239, .5);
  --faq-panel: rgba(20, 41, 75, .58);
  color: var(--paper);
  padding-bottom: clamp(56px, 9vw, 110px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb-row {
  padding-top: clamp(16px, 2.4vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(22px, 3.6vw, 46px);
  padding-bottom: clamp(6px, 1.6vw, 14px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -50px 0 auto 0;
  height: 260px;
  background: radial-gradient(58% 100% at 18% 0%, rgba(15, 122, 70, .34), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 24ch;
  font-size: clamp(29px, 5.1vw, 54px);
  line-height: 1.16;
  letter-spacing: -.02em;
  font-weight: 900;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--faq-dim);
}

/* ---------- 三问快答 ---------- */
.page-faq .faq-quick {
  margin-top: clamp(30px, 5vw, 58px);
}

.page-faq .faq-quick__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: 18px;
}

.page-faq .faq-quick__title {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: -.01em;
  font-weight: 800;
}

.page-faq .faq-quick__hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--rail);
}

.page-faq .quick-grid {
  display: grid;
  gap: 14px;
}

.page-faq .quick-card {
  position: relative;
  padding: 20px 22px 18px;
  border: 1px solid var(--line-soft);
  border-radius: 24px 24px 24px 8px;
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(31, 168, 95, .12), transparent 62%),
    linear-gradient(165deg, rgba(20, 41, 75, .78), rgba(10, 23, 48, .72));
  transition: border-color .28s ease-out, transform .28s ease-out;
}

.page-faq .quick-card:hover,
.page-faq .quick-card:focus-within {
  border-color: rgba(216, 250, 75, .38);
  transform: translateY(-2px);
}

.page-faq .quick-card > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
}

.page-faq .quick-card > summary::-webkit-details-marker {
  display: none;
}

.page-faq .quick-card > summary::marker {
  content: "";
}

.page-faq .quick-card__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .06em;
  color: var(--flare);
  padding-top: 3px;
}

.page-faq .quick-card__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .quick-card__sign {
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--turf-hi);
  transition: transform .28s ease-out, color .28s ease-out;
}

.page-faq .quick-card[open] .quick-card__sign {
  color: var(--flare);
  transform: rotate(45deg);
}

.page-faq .quick-card__body {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-faq .quick-card__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-dim);
}

/* ---------- 主体：索引 + 答案 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  margin-top: clamp(40px, 7vw, 86px);
}

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

.page-faq .faq-index__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--rail);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -1px;
  padding: 11px 0 11px 16px;
  border-left: 2px solid transparent;
  color: var(--faq-dim-2);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color .24s ease-out, border-color .24s ease-out;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--paper);
  border-left-color: var(--turf-hi);
}

.page-faq .faq-index__list a[aria-current="true"] {
  color: var(--flare);
  border-left-color: var(--flare);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--rail);
}

.page-faq .faq-index__list a[aria-current="true"] .faq-index__num {
  color: var(--flare);
}

/* ---------- 答案区块 ---------- */
.page-faq .faq-answers {
  display: grid;
  gap: clamp(22px, 3.6vw, 40px);
  min-width: 0;
}

.page-faq .faq-block {
  position: relative;
  scroll-margin-top: 108px;
  padding: clamp(22px, 3.4vw, 42px);
  border: 1px solid var(--line-soft);
  border-radius: var(--faq-arc-lg) var(--faq-arc-lg) var(--faq-arc-sm) var(--faq-arc-sm);
  background:
    radial-gradient(110% 80% at 0% 0%, rgba(31, 168, 95, .1), transparent 60%),
    linear-gradient(180deg, var(--faq-panel), rgba(10, 23, 48, .42));
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.page-faq .faq-block__idx {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.8vw, 34px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--flare);
}

.page-faq .faq-block__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.3;
  letter-spacing: -.01em;
  font-weight: 800;
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa {
  border-top: 1px solid var(--line-soft);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  align-items: start;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.65;
  transition: color .24s ease-out;
}

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

.page-faq .qa > summary::marker {
  content: "";
}

.page-faq .qa > summary:hover {
  color: var(--flare);
}

.page-faq .qa__sign {
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.5;
  color: var(--turf-hi);
  transition: transform .28s ease-out, color .28s ease-out;
}

.page-faq .qa[open] .qa__sign {
  color: var(--flare);
  transform: rotate(45deg);
}

.page-faq .qa__q {
  min-width: 0;
}

.page-faq .qa__body {
  padding: 0 0 20px 32px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-dim);
}

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

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

.page-faq .qa__body a {
  color: var(--turf-hi);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .qa__body a:hover {
  color: var(--flare);
}

/* ---------- 数字圆点路径 ---------- */
.page-faq .steps {
  list-style: none;
  counter-reset: faq-step;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .steps li {
  counter-increment: faq-step;
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 12px;
  align-items: start;
  line-height: 1.75;
}

.page-faq .steps li::before {
  content: counter(faq-step);
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(31, 168, 95, .5);
  background: rgba(31, 168, 95, .16);
  color: var(--turf-hi);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

/* ---------- 图片 ---------- */
.page-faq .faq-media {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
}

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

.page-faq .faq-media--support {
  margin-bottom: clamp(20px, 3vw, 30px);
}

/* ---------- 适配两栏清单 ---------- */
.page-faq .fit-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-faq .fit-col {
  padding: 18px 20px 20px;
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  background: rgba(10, 23, 48, .5);
}

.page-faq .fit-col--ok {
  border-color: rgba(31, 168, 95, .36);
}

.page-faq .fit-col--warn {
  border-color: rgba(52, 210, 208, .32);
}

.page-faq .fit-col__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
}

.page-faq .fit-col--ok .fit-col__label {
  color: var(--turf-hi);
}

.page-faq .fit-col--warn .fit-col__label {
  color: var(--concede);
}

.page-faq .fit-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .fit-col li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--faq-dim);
}

.page-faq .fit-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: .5;
}

.page-faq .fit-col--ok li::before {
  background: var(--turf-hi);
  opacity: .9;
}

.page-faq .fit-col--warn li::before {
  background: var(--concede);
  opacity: .9;
}

/* ---------- 订阅上限刻度 ---------- */
.page-faq .quota {
  margin-top: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  background: rgba(10, 23, 48, .5);
}

.page-faq .quota__ticks {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .quota__ticks span {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--rail);
}

.page-faq .quota__ticks span.is-on {
  border-color: rgba(216, 250, 75, .5);
  background: rgba(216, 250, 75, .1);
  color: var(--flare);
}

.page-faq .quota__note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-dim-2);
}

/* ---------- 支持面板 ---------- */
.page-faq .support {
  padding: clamp(24px, 3.6vw, 44px);
  border-radius: 22px 22px 22px 60px;
  background: var(--paper);
  color: var(--deep);
}

.page-faq .support-grid {
  display: grid;
  gap: 24px;
}

.page-faq .support-lede {
  margin: 0 0 14px;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  line-height: 1.55;
  letter-spacing: -.01em;
}

.page-faq .support-tips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .support-tips li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(8, 18, 31, .78);
}

.page-faq .support-tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--turf);
}

.page-faq .support-channels {
  padding-top: 20px;
  border-top: 1px solid rgba(8, 18, 31, .14);
}

.page-faq .support-channels__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: rgba(8, 18, 31, .55);
}

.page-faq .support-line {
  margin: 0 0 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  font-size: 15px;
}

.page-faq .support-line__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: rgba(8, 18, 31, .5);
}

.page-faq .support-line a {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--turf);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid rgba(15, 122, 70, .35);
}

.page-faq .support-line a:hover {
  color: var(--deep);
  border-bottom-color: var(--deep);
}

.page-faq .support-time,
.page-faq .support-form,
.page-faq .support-coop {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(8, 18, 31, .72);
}

.page-faq .support-coop a {
  color: var(--turf);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-faq .quick-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .fit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .support-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 32px;
  }

  .page-faq .support-channels {
    padding-top: 0;
    padding-left: 28px;
    border-top: 0;
    border-left: 1px solid rgba(8, 18, 31, .14);
  }
}

/* ---------- 桌面：左索引 + 右答案 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(178px, 216px) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 76px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .qa > summary {
    font-size: 16.5px;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .quick-card,
  .page-faq .quick-card__sign,
  .page-faq .qa__sign,
  .page-faq .faq-index__list a {
    transition: none;
  }

  .page-faq .quick-card:hover,
  .page-faq .quick-card:focus-within {
    transform: none;
  }

  .page-faq .quick-card[open] .quick-card__sign,
  .page-faq .qa[open] .qa__sign {
    transform: none;
    color: var(--flare);
  }
}