.page-faq {
  --faq-line: rgba(28, 26, 23, .2);
  --faq-step-offset: 40px;
  --faq-sticky-top: 92px;
  background: var(--snow);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .35em;
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: .35em;
  color: var(--rule-strong);
}

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

.page-faq .breadcrumb a:hover {
  color: var(--vermilion);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: 24px 0 48px;
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero .eyebrow {
  color: var(--turquoise);
  margin: 0;
}

.page-faq h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 8vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  font-weight: 700;
  margin: 12px 0 18px;
  color: var(--ink);
}

.page-faq .faq-hero .lead {
  max-width: 34em;
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-hero__card {
  position: relative;
  background: var(--deep);
  color: var(--white);
  border-radius: var(--radius);
  padding: 28px 22px 24px;
  overflow: hidden;
}

.page-faq .faq-hero__card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--vermilion) 0 33%, var(--turquoise) 33% 66%, var(--ochre) 66% 100%);
}

.page-faq .faq-hero__card-no {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--ochre);
}

.page-faq .faq-hero__big {
  display: flex;
  align-items: baseline;
  gap: .2em;
  flex-wrap: wrap;
  margin: 10px 0 6px;
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 10vw, 3.2rem);
  line-height: 1.05;
  color: var(--white);
}

.page-faq .faq-hero__big span {
  font-family: var(--font-sans);
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--ochre);
}

.page-faq .faq-hero__big-note {
  margin: 0;
  font-size: .875rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, .72);
}

.page-faq .faq-hero__facts {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--rule-light);
}

.page-faq .faq-hero__facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-faq .faq-hero__facts dt {
  font-size: .75rem;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .58);
}

.page-faq .faq-hero__facts dd {
  margin: 0;
  text-align: right;
  font-size: .875rem;
  color: var(--white);
}

/* 通用节律 */
.page-faq .section {
  padding: 52px 0;
}

.page-faq .section--tight {
  padding: 40px 0;
}

.page-faq .section-head {
  margin-bottom: 28px;
}

.page-faq .section-head__no {
  color: var(--vermilion);
}

.page-faq .section-head__title {
  font-family: var(--font-serif);
  letter-spacing: -.01em;
}

.page-faq .section-head__note {
  max-width: 40em;
  color: var(--slate);
  line-height: 1.75;
}

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

.page-faq .figure__frame {
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--mist);
}

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

.page-faq .figure__cap {
  margin-top: 8px;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--slate);
}

/* 三栏步骤 */
.page-faq .faq-steps__hint {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-faq .faq-steps {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 84%;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  margin: 0 calc(var(--gutter) * -1);
  padding: 4px var(--gutter) 16px;
  scrollbar-width: thin;
}

.page-faq .faq-step {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-step__node {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-step__node::after {
  content: "";
  flex: 1 1 auto;
  border-top: 1px dashed var(--faq-line);
}

.page-faq .faq-step__dot {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  background: var(--snow);
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--slate);
  transition: background .3s ease, border-color .3s ease, color .3s ease;
}

.page-faq .faq-step:nth-child(2) .faq-step__dot {
  transition-delay: .1s;
}

.page-faq .faq-step:nth-child(3) .faq-step__dot {
  transition-delay: .2s;
}

.page-faq .faq-step.is-in .faq-step__dot {
  background: var(--vermilion);
  border-color: var(--vermilion);
  color: var(--white);
}

.page-faq .faq-step__card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1 1 auto;
  padding: 20px 18px 22px;
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
}

.page-faq .faq-step__no {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--vermilion);
}

.page-faq .faq-step__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ink);
}

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

.page-faq .faq-step__list li {
  position: relative;
  padding-left: 18px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-step__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 10px;
  height: 2px;
  background: var(--ochre);
}

.page-faq .faq-step__card .tag {
  align-self: flex-start;
  margin-top: auto;
}

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

/* 预约准备 */
.page-faq .faq-prep {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-prep__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 18px 0 20px;
  border-top: 2px solid var(--deep);
}

.page-faq .faq-prep__no {
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .06em;
  color: var(--vermilion);
  padding-top: 4px;
}

.page-faq .faq-prep__title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.35;
  color: var(--ink);
}

.page-faq .faq-prep__desc {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--slate);
}

/* 时段与范围 */
.page-faq .faq-scope-wrap {
  display: grid;
  gap: 26px;
}

.page-faq .faq-scope {
  margin: 0;
  border-top: 1px solid var(--rule-strong);
}

.page-faq .faq-scope__row {
  display: grid;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-scope dt {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--turquoise);
}

.page-faq .faq-scope dd {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-scope__note {
  padding: 22px 20px;
  border-left: 3px solid var(--ochre);
  border-radius: var(--radius);
}

.page-faq .faq-scope__note .eyebrow {
  margin: 0 0 10px;
  color: var(--ochre);
}

.page-faq .faq-scope__note p {
  margin: 0 0 16px;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--ink);
}

/* 问答区 */
.page-faq .faq-qa {
  display: grid;
  gap: 26px;
}

.page-faq .faq-qa__nav {
  align-self: start;
}

.page-faq .faq-qa__nav .eyebrow {
  margin: 0;
  color: var(--slate);
}

.page-faq .faq-qa__navlist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-qa__navlink {
  display: block;
  padding: 7px 12px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  font-size: .8125rem;
  line-height: 1.4;
  color: var(--slate);
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.page-faq .faq-qa__navlink:hover {
  color: var(--ink);
  border-color: var(--rule-strong);
}

.page-faq .faq-qa__navlink[aria-current="true"] {
  color: var(--white);
  background: var(--deep);
  border-color: var(--deep);
}

.page-faq .faq-group + .faq-group {
  margin-top: 34px;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 4px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--deep);
  font-family: var(--font-serif);
  font-size: 1.3rem;
  line-height: 1.35;
  color: var(--ink);
}

.page-faq .faq-group__title span {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--ochre);
  font-weight: 400;
}

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

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 30px 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

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

.page-faq .faq-item__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--turquoise);
}

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 13px;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--vermilion);
}

.page-faq .faq-item[open] summary::after {
  content: "\2212";
}

.page-faq .faq-item[open] summary {
  color: var(--vermilion);
}

.page-faq .faq-item__body {
  max-width: 40em;
  padding: 0 0 18px;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-item__body p {
  margin: 0 0 8px;
}

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

.page-faq .faq-item__body a {
  color: var(--turquoise);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__body a:hover {
  color: var(--vermilion);
}

/* 咨询收尾 */
.page-faq .faq-help {
  background: var(--deep);
  color: var(--white);
  padding: 52px 0 56px;
  margin-top: 20px;
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-help .eyebrow {
  margin: 0;
  color: var(--ochre);
}

.page-faq .faq-help h2 {
  margin: 10px 0 16px;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 5vw, 2.3rem);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .faq-help p {
  margin: 0 0 12px;
  font-size: .9375rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .78);
}

.page-faq .faq-help__card {
  display: grid;
  gap: 18px;
  padding: 22px 20px;
  border: 1px solid var(--rule-light);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .05);
}

.page-faq .faq-help__row {
  display: grid;
  gap: 6px;
}

.page-faq .faq-help__label {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--ochre);
}

.page-faq .faq-help__value {
  font-size: 1.0625rem;
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-help__note {
  margin: 0;
  font-size: .8125rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, .62);
}

.page-faq .copy-btn {
  justify-self: start;
  padding: 6px 12px;
  margin-top: 2px;
  font-family: var(--font-sans);
  font-size: .8125rem;
  color: var(--white);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease;
}

.page-faq .copy-btn:hover {
  color: var(--ochre);
  border-color: var(--ochre);
}

.page-faq .faq-help__card .btn {
  justify-self: start;
}

/* 平板 */
@media (min-width: 640px) {
  .page-faq .faq-scope__row {
    grid-template-columns: 9em 1fr;
    gap: 16px;
    align-items: baseline;
  }

  .page-faq .faq-prep {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 28px;
  }

  .page-faq .faq-steps {
    grid-auto-columns: 56%;
  }
}

/* 桌面 */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 28px 0 60px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
    align-items: end;
  }

  .page-faq .section {
    padding: 76px 0;
  }

  .page-faq .section--tight {
    padding: 56px 0;
  }

  .page-faq .section-head {
    margin-bottom: 36px;
  }

  .page-faq .faq-steps__hint {
    display: none;
  }

  .page-faq .faq-steps {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    overflow: visible;
    margin: 0;
    padding: 0;
  }

  .page-faq .faq-step {
    padding-right: 26px;
  }

  .page-faq .faq-step:nth-child(3) {
    padding-right: 0;
  }

  .page-faq .faq-step:nth-child(2) {
    margin-top: var(--faq-step-offset);
  }

  .page-faq .figure {
    margin-bottom: 32px;
  }

  .page-faq .faq-scope-wrap {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-qa {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-qa__nav {
    position: sticky;
    top: var(--faq-sticky-top);
  }

  .page-faq .faq-qa__navlist {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
    margin-top: 14px;
    border-left: 1px solid var(--rule);
  }

  .page-faq .faq-qa__navlink {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 8px 10px;
    font-size: .875rem;
  }

  .page-faq .faq-qa__navlink[aria-current="true"] {
    background: var(--sand);
    color: var(--ink);
    border-left-color: var(--vermilion);
    font-weight: 600;
  }

  .page-faq .faq-help {
    padding: 76px 0 80px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step__dot,
  .page-faq .faq-qa__navlink,
  .page-faq .copy-btn {
    transition: none;
  }
}