.page-faq {
  --faq-line: var(--mist);
  --faq-panel: var(--white);
  --faq-radius: 3px;
  display: block;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: clamp(28px, 6vw, 56px) 0 clamp(24px, 5vw, 48px);
  border-bottom: var(--hairline);
  background:
    linear-gradient(180deg, rgba(15, 76, 99, 0.05) 0%, rgba(15, 76, 99, 0) 62%),
    var(--paper);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-hero__lead h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 5.4vw, 46px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
  color: var(--ink);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  font-size: clamp(16px, 2.4vw, 18px);
  line-height: 1.85;
  color: var(--lead);
  max-width: 62ch;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: 22px;
}

.page-faq .faq-jump__link {
  display: inline-block;
  padding: 7px 13px;
  border: var(--hairline);
  border-radius: 999px;
  background: var(--white);
  color: var(--lake);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  background: var(--lake);
  border-color: var(--lake);
  color: var(--white);
}

.page-faq .faq-hero__side {
  background: var(--white);
  border: var(--hairline);
  border-radius: var(--faq-radius);
  box-shadow: var(--soft-shadow);
  padding: 20px;
}

.page-faq .faq-hero__side .score {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: var(--hairline);
}

.page-faq .faq-hero__facts {
  margin: 14px 0 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-fact {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 12px;
  align-items: baseline;
}

.page-faq .faq-fact dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--lead);
}

.page-faq .faq-fact dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-fact__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 17px;
  color: var(--lake);
}

/* 章节 */
.page-faq .faq-section {
  padding: clamp(32px, 6vw, 64px) 0 clamp(28px, 5vw, 56px);
}

.page-faq .faq-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
  align-items: baseline;
  margin-bottom: clamp(20px, 3.5vw, 32px);
}

.page-faq .faq-head .chapter__num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: clamp(38px, 8vw, 64px);
  font-weight: 700;
  line-height: 0.9;
  color: var(--lake);
  opacity: 0.9;
}

.page-faq .faq-head .chapter__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 4.2vw, 34px);
  line-height: 1.3;
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-head .chapter__lede {
  margin: 6px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--lead);
}

/* 分组之间的窄分隔带 */
.page-faq .faq-rule {
  position: relative;
  border-top: var(--hairline);
  border-bottom: var(--hairline);
  background: rgba(201, 220, 228, 0.28);
  padding: 7px 0;
}

.page-faq .faq-rule__label {
  display: block;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--pad);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--lake);
}

/* 回答区布局 */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.5vw, 34px);
  align-items: start;
}

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

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

/* 折叠问答 */
.page-faq .faq-item {
  background: var(--faq-panel);
  border: var(--hairline);
  border-left: 3px solid var(--mist);
  border-radius: var(--faq-radius);
  box-shadow: var(--soft-shadow);
  transition: border-left-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-faq .faq-item:hover {
  border-left-color: var(--lake);
}

.page-faq .faq-q[open] {
  border-left-color: var(--orange);
}

.page-faq .faq-item:has(.faq-q[open]) {
  border-left-color: var(--orange);
}

.page-faq .faq-q__summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q__text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-q__arrow {
  flex: none;
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

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

.page-faq .faq-q__arrow::before {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q__arrow::after {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
}

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

.page-faq .faq-q__arrow {
  color: var(--orange);
}

.page-faq .faq-q[open] .faq-q__arrow::before {
  background: var(--orange);
}

.page-faq .faq-q__answer {
  padding: 0 18px 18px;
  border-top: 1px dashed var(--mist);
  margin-top: 2px;
}

.page-faq .faq-q__answer p {
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--lead);
}

.page-faq .faq-q__answer p:first-child {
  margin-top: 14px;
}

/* 返回分组 */
.page-faq .faq-back {
  margin: clamp(20px, 3vw, 28px) 0 0;
}

.page-faq .faq-back .btn--quiet {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* 联系章节 */
.page-faq .faq-contact-media {
  margin: 0 0 clamp(20px, 3.5vw, 32px);
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-contact__block {
  background: var(--white);
  border: var(--hairline);
  border-top: 3px solid var(--grass);
  border-radius: var(--faq-radius);
  padding: 18px;
  box-shadow: var(--soft-shadow);
}

.page-faq .faq-contact__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.45;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-faq .faq-contact__block p {
  margin: 0 0 8px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--lead);
}

.page-faq .faq-contact__block p:last-child {
  margin-bottom: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.01em;
  color: var(--lake);
}

.page-faq .faq-next {
  margin-top: clamp(20px, 3.5vw, 32px);
  padding: clamp(20px, 3.5vw, 30px);
  border: var(--hairline);
  border-radius: var(--faq-radius);
  background:
    linear-gradient(120deg, rgba(46, 107, 79, 0.09) 0%, rgba(15, 76, 99, 0.09) 100%),
    var(--white);
}

.page-faq .faq-next__text {
  margin: 0 0 16px;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 60ch;
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-anchor {
  display: block;
  height: 0;
  scroll-margin-top: 96px;
}

.page-faq .faq-hero,
.page-faq .faq-section {
  scroll-margin-top: 92px;
}

/* 平板起 */
@media (min-width: 700px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-body--reverse .faq-body__main {
    order: 1;
  }
}

/* 桌面 */
@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 1fr);
    align-items: start;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 40px;
  }

  .page-faq .faq-body--reverse {
    grid-template-columns: minmax(0, 1fr);
    max-width: 880px;
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-head {
    grid-template-columns: auto 1fr;
    gap: 6px 22px;
  }

  .page-faq .faq-q__summary {
    padding: 17px 22px;
  }

  .page-faq .faq-q__answer {
    padding: 0 22px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-jump__link,
  .page-faq .faq-q__arrow::before,
  .page-faq .faq-q__arrow::after {
    transition: none;
  }
}