.page-faq {
  --faq-rail-w: 264px;
  --faq-shell-gap: 52px;
  background-color: var(--yd-cream);
  color: var(--yd-ink);
  font-family: var(--yd-font-body);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  background-color: var(--yd-night);
  color: var(--yd-cream);
  padding: 28px 0 56px;
  border-bottom: 1px solid var(--yd-line-dark);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(169, 179, 191, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 179, 191, .07) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), rgba(0, 0, 0, .15));
}

.page-faq .faq-hero > .yd-container {
  position: relative;
  z-index: 1;
}

.page-faq .yd-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
  font-family: var(--yd-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(245, 239, 228, .58);
}

.page-faq .yd-breadcrumb__link {
  color: var(--yd-ochre);
  text-decoration: none;
}

.page-faq .yd-breadcrumb__link:hover,
.page-faq .yd-breadcrumb__link:focus-visible {
  text-decoration: underline;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  align-items: end;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 16px;
  font-family: var(--yd-font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--yd-gold);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--yd-font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--yd-cream);
  max-width: 18em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(245, 239, 228, .78);
}

.page-faq .faq-hero__plates {
  display: flex;
  flex-wrap: wrap;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--yd-line-dark);
}

.page-faq .faq-plate {
  flex: 1 1 128px;
  min-width: 0;
  padding: 16px 16px 2px 0;
}

.page-faq .faq-plate + .faq-plate {
  padding-left: 18px;
  border-left: 1px solid var(--yd-line-dark);
}

.page-faq .faq-plate__key {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--yd-silver);
}

.page-faq .faq-plate__val {
  display: block;
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--yd-ochre);
}

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

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--yd-line-dark);
}

/* ---------- 主体骨架 ---------- */

.page-faq .faq-body {
  padding-bottom: 72px;
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: 40px;
}

.page-faq .faq-rail {
  min-width: 0;
  border: 1px solid var(--yd-line);
  background-color: var(--yd-paper);
  padding: 22px 20px 24px;
}

.page-faq .faq-rail__eyebrow {
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--yd-ink);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(42, 33, 28, .6);
}

.page-faq .faq-rail__nav {
  display: flex;
  flex-direction: column;
}

.page-faq .faq-rail__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 10px;
  padding: 11px 8px 11px 4px;
  border-bottom: 1px solid var(--yd-line);
  text-decoration: none;
  color: var(--yd-ink);
  transition: background-color .2s var(--yd-ease), padding-left .2s var(--yd-ease);
}

.page-faq .faq-rail__item:hover,
.page-faq .faq-rail__item:focus-visible {
  background-color: rgba(224, 137, 28, .16);
  padding-left: 10px;
}

.page-faq .faq-rail__item:focus-visible {
  outline: 2px solid var(--yd-neon);
  outline-offset: -2px;
}

.page-faq .faq-rail__no {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--yd-gold);
}

.page-faq .faq-rail__name {
  font-size: 14.5px;
  line-height: 1.5;
  font-weight: 600;
}

.page-faq .faq-rail__count {
  font-size: 12px;
  color: rgba(42, 33, 28, .5);
}

.page-faq .faq-rail__note {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--yd-ink);
}

.page-faq .faq-rail__note-title {
  margin: 0 0 8px;
  font-family: var(--yd-font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -.005em;
}

.page-faq .faq-rail__note-text {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(42, 33, 28, .74);
}

.page-faq .faq-rail__note-mail {
  margin: 0 0 4px;
  font-family: var(--yd-font-mono);
  font-size: 13px;
  word-break: break-all;
  color: var(--yd-rust);
}

.page-faq .faq-rail__note-hours {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(42, 33, 28, .58);
}

.page-faq .faq-rail__cta {
  display: inline-block;
}

/* ---------- 分组 ---------- */

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

.page-faq .faq-group {
  margin-bottom: 26px;
  padding: 30px 22px 34px;
  border: 1px solid var(--yd-line);
  background-color: var(--yd-cream);
  scroll-margin-top: 120px;
}

.page-faq .faq-group--paper {
  background-color: var(--yd-paper);
}

.page-faq .faq-group[data-reveal] {
  opacity: 1;
  transform: none;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--yd-ink);
}

.page-faq .faq-group__no {
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--yd-gold);
}

.page-faq .faq-group__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--yd-font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-faq .faq-group__count {
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(42, 33, 28, .52);
}

/* ---------- 折叠条目 ---------- */

.page-faq .faq-list {
  margin-top: 4px;
}

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

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 4px 18px 14px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 16.5px;
  line-height: 1.6;
  color: var(--yd-ink);
  transition: color .2s var(--yd-ease), padding-left .2s var(--yd-ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background-color: var(--yd-neon);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .3s var(--yd-ease);
}

.page-faq .faq-item[open] > .faq-item__q::before {
  transform: scaleY(1);
}

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  padding-left: 14px;
  font-family: var(--yd-font-mono);
  font-size: 19px;
  line-height: 1;
  font-weight: 400;
  color: var(--yd-gold);
}

.page-faq .faq-item[open] > .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item__q:hover {
  color: var(--yd-rust);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--yd-neon);
  outline-offset: 2px;
}

.page-faq .faq-item__no {
  flex: none;
  padding-top: 5px;
  font-size: 12px;
  letter-spacing: .1em;
  color: rgba(42, 33, 28, .44);
}

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

.page-faq .faq-item__a {
  max-width: 64ch;
  padding: 0 8px 24px 40px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(42, 33, 28, .84);
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item__a a {
  color: var(--yd-rust);
  text-decoration: none;
  border-bottom: 1px solid rgba(192, 73, 43, .45);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  border-bottom-color: var(--yd-neon);
  color: var(--yd-night);
}

.page-faq .faq-item[open] > .faq-item__a {
  animation: faqReveal .3s var(--yd-ease);
}

@keyframes faqReveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 周期时间轴 ---------- */

.page-faq .faq-timeline {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin: 22px 0 26px;
  padding: 26px 22px;
  background-color: var(--yd-night);
  border: 1px solid var(--yd-night);
}

.page-faq .faq-timeline__steps {
  margin: 0;
  padding: 0 0 0 2px;
  list-style: none;
}

.page-faq .faq-timeline__step {
  position: relative;
  padding: 0 0 20px 26px;
  border-left: 1px solid var(--yd-line-dark);
}

.page-faq .faq-timeline__step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-timeline__step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 5px;
  width: 7px;
  height: 7px;
  background-color: var(--yd-gold);
}

.page-faq .faq-timeline__step--last::before {
  background-color: var(--yd-neon);
}

.page-faq .faq-timeline__day {
  display: block;
  margin-bottom: 4px;
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--yd-ochre);
}

.page-faq .faq-timeline__label {
  display: block;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
  color: var(--yd-cream);
}

.page-faq .faq-timeline__desc {
  display: block;
  margin-top: 3px;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(245, 239, 228, .62);
}

.page-faq .faq-timeline__figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  border: 1px solid var(--yd-line-dark);
}

.page-faq .faq-timeline__figure figcaption {
  margin-top: 12px;
  font-family: var(--yd-font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--yd-silver);
}

/* ---------- 咨询通道 ---------- */

.page-faq .faq-contact {
  background-color: var(--yd-night-2);
  border-top: 1px solid var(--yd-line-dark);
  padding: 56px 0 60px;
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.page-faq .faq-contact__kicker {
  margin: 0 0 14px;
  font-size: 11.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--yd-neon);
}

.page-faq .faq-contact__title {
  margin: 0 0 18px;
  font-family: var(--yd-font-display);
  font-weight: 800;
  font-size: clamp(23px, 4vw, 34px);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--yd-cream);
}

.page-faq .faq-contact__lead {
  margin: 0 0 26px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(245, 239, 228, .74);
}

.page-faq .faq-contact__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 1px solid var(--yd-line-dark);
}

.page-faq .faq-contact__card {
  padding: 20px 0;
  border-bottom: 1px solid var(--yd-line-dark);
}

.page-faq .faq-contact__card-key {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--yd-silver);
}

.page-faq .faq-contact__card-val {
  margin: 0;
  font-family: var(--yd-font-mono);
  font-size: 17px;
  letter-spacing: .02em;
  word-break: break-all;
  color: var(--yd-ochre);
}

.page-faq .faq-contact__card-note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(245, 239, 228, .58);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 34px 0 68px;
  }

  .page-faq .faq-group {
    padding: 34px 32px 40px;
  }

  .page-faq .faq-timeline {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 36px;
    align-items: center;
    padding: 30px 28px;
  }

  .page-faq .faq-contact__cards {
    border-top: 1px solid var(--yd-line-dark);
  }

  .page-faq .faq-contact__card {
    display: grid;
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 6px 20px;
    align-items: baseline;
  }

  .page-faq .faq-contact__card-key {
    margin: 0;
    grid-row: 1 / span 2;
    padding-top: 4px;
  }

  .page-faq .faq-contact__card-val {
    grid-column: 2;
  }

  .page-faq .faq-contact__card-note {
    grid-column: 2;
    margin: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 54px;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    gap: 58px;
  }

  .page-faq .faq-item__q {
    font-size: 17.5px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--faq-shell-gap);
    padding-top: 56px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 108px;
    align-self: start;
    max-height: calc(100vh - 132px);
    overflow-y: auto;
  }

  .page-faq .faq-item__a {
    padding-left: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] > .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__q::before,
  .page-faq .faq-item__q,
  .page-faq .faq-rail__item {
    transition: none;
  }
}