.page-faq {
  --faq-rail: clamp(72px, 9vw, 132px);
  --faq-answer: 62ch;
  --faq-dash: #C9C2BB;
}

/* ---------- 面包屑 + 首屏 ---------- */
.page-faq .breadcrumbs {
  margin: clamp(20px, 3vw, 36px) 0 clamp(28px, 4vw, 52px);
}

.page-faq .faq-hero {
  border-top: 1px solid var(--ink);
  padding-top: clamp(24px, 3vw, 44px);
  padding-bottom: clamp(40px, 6vw, 84px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  grid-template-columns: 1fr;
}

.page-faq .faq-hero__lead .eyebrow {
  margin-bottom: 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(38px, 6.4vw, 96px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 22px;
  color: var(--ink);
  max-width: 18ch;
}

.page-faq .faq-hero .lede {
  max-width: 38em;
  font-size: clamp(16px, 1.15vw, 18px);
  line-height: 1.9;
  color: var(--gray);
  margin: 0;
}

.page-faq .faq-hero__strip {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__strip > div {
  display: grid;
  grid-template-columns: minmax(96px, 128px) 1fr;
  align-items: baseline;
  gap: 16px;
  padding: 16px 2px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__strip dt {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--pink);
  margin: 0;
}

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

/* ---------- 三条承诺 ---------- */
.page-faq .faq-promise {
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-faq .promise-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ink);
}

.page-faq .promise-cell {
  padding: clamp(20px, 2.6vw, 34px) 2px clamp(22px, 3vw, 36px);
  border-bottom: 1px solid var(--line);
  position: relative;
}

.page-faq .promise-cell__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 12px;
}

.page-faq .promise-cell h3 {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
  color: var(--ink);
}

.page-faq .promise-cell p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--gray);
  max-width: 34em;
}

.page-faq .promise-cell:hover {
  background: var(--blush);
  transition: background-color 200ms ease;
}

/* ---------- 订单状态区 ---------- */
.page-faq .faq-state {
  padding: clamp(40px, 6vw, 84px) 0;
}

.page-faq .state-rule {
  height: 0;
  border-top: 1px dashed var(--faq-dash);
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-faq .state-layout {
  display: grid;
  gap: clamp(20px, 3vw, 48px);
  grid-template-columns: 1fr;
}

.page-faq .state-rail {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-faq .state-num {
  font-family: var(--font-mono);
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.page-faq .state-rail__label {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-faq .state-title {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 44px);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  color: var(--ink);
}

.page-faq .state-lede {
  margin: 0 0 clamp(22px, 3vw, 34px);
  max-width: 36em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--gray);
}

/* ---------- 详情折叠列表 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-list summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 34px 18px 0;
  position: relative;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.6;
  color: var(--ink);
  transition: color 160ms ease, transform 160ms ease;
}

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

.page-faq .faq-list summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--pink);
  transition: transform 160ms ease;
}

.page-faq .faq-list details[open] > summary {
  color: var(--pink);
}

.page-faq .faq-list details[open] > summary::after {
  content: "−";
}

.page-faq .faq-list summary:hover {
  color: var(--pink);
}

.page-faq .faq-list details[open] > summary {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-list .answer {
  padding: 18px 0 22px;
  max-width: var(--faq-answer);
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--gray);
}

.page-faq .faq-list .answer p {
  margin: 0 0 12px;
}

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

.page-faq .faq-list .answer .link,
.page-faq .fit-case .link,
.page-faq .contact-note .link {
  color: var(--rose);
  text-decoration: none;
  border-bottom: 1px solid var(--rose);
  transition: color 160ms ease, border-color 160ms ease;
}

.page-faq .faq-list .answer .link:hover,
.page-faq .fit-case .link:hover,
.page-faq .contact-note .link:hover {
  color: var(--pink);
  border-bottom-color: var(--pink);
}

/* ---------- 签收区双栏 ---------- */
.page-faq .state-cols {
  display: grid;
  gap: clamp(26px, 3.6vw, 52px);
  grid-template-columns: 1fr;
}

.page-faq .state-media {
  margin: 0;
}

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

.page-faq .state-media figcaption {
  margin-top: 12px;
  max-width: 30em;
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 尺码错了怎么办 ---------- */
.page-faq .faq-fit {
  padding: clamp(44px, 6vw, 92px) 0 clamp(40px, 6vw, 80px);
  border-top: 1px dashed var(--faq-dash);
}

.page-faq .fit-head .section-title {
  margin-bottom: 14px;
}

.page-faq .fit-lede {
  max-width: 36em;
  margin: 0 0 clamp(24px, 3.4vw, 44px);
  font-size: 16px;
  line-height: 1.9;
  color: var(--gray);
}

.page-faq .fit-cases {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ink);
}

.page-faq .fit-case {
  padding: clamp(22px, 3vw, 34px) 2px;
  border-bottom: 1px solid var(--line);
}

.page-faq .fit-case h3 {
  font-family: var(--font-display);
  font-size: clamp(19px, 1.7vw, 24px);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 12px 0 12px;
  color: var(--ink);
}

.page-faq .fit-case p {
  margin: 0 0 12px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray);
}

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

.page-faq .fit-note {
  margin: clamp(22px, 3vw, 36px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--pink);
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gray);
}

/* ---------- 退款与进度 ---------- */
.page-faq .faq-refund {
  padding: clamp(40px, 6vw, 84px) 0;
  border-top: 1px solid var(--ink);
}

.page-faq .refund-grid {
  display: grid;
  gap: clamp(26px, 4vw, 60px);
  grid-template-columns: 1fr;
}

.page-faq .refund-lede {
  margin: 0;
  max-width: 30em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--gray);
}

.page-faq .refund-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .refund-steps li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: clamp(12px, 1.6vw, 22px);
  padding: 18px 2px;
  border-bottom: 1px solid var(--line);
  transition: transform 160ms ease;
}

.page-faq .refund-steps li:hover {
  transform: translateX(4px);
}

.page-faq .refund-steps .step-num {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--gold);
  padding-top: 2px;
}

.page-faq .refund-steps h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-faq .refund-steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gray);
  max-width: 40em;
}

.page-faq .refund-note {
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 16px 18px;
  background: var(--blush);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 60em;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact {
  padding: clamp(40px, 6vw, 88px) 0 clamp(56px, 8vw, 110px);
  border-top: 1px dashed var(--faq-dash);
}

.page-faq .contact-cols {
  display: grid;
  gap: clamp(28px, 4vw, 58px);
  grid-template-columns: 1fr;
}

.page-faq .contact-lede {
  margin: 0 0 clamp(22px, 3vw, 36px);
  max-width: 36em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--gray);
}

.page-faq .contact-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .contact-channels li {
  padding: 18px 2px;
  border-bottom: 1px solid var(--line);
}

.page-faq .contact-channels h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  margin: 10px 0 8px;
  color: var(--ink);
}

.page-faq .contact-channels p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gray);
  max-width: 40em;
}

.page-faq .contact-note {
  margin: clamp(20px, 3vw, 32px) 0 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.9;
  color: var(--gray);
}

.page-faq .contact-media {
  margin: 0;
}

.page-faq .contact-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line);
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .contact-media figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 悬浮尺码入口 ---------- */
.page-faq .fit-float {
  display: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .promise-row {
    grid-template-columns: repeat(3, 1fr);
    border-bottom: 1px solid var(--ink);
  }

  .page-faq .promise-cell {
    border-bottom: 1px solid var(--line);
    border-right: 1px solid var(--line);
    padding-right: clamp(18px, 2vw, 30px);
  }

  .page-faq .promise-cell:last-child {
    border-right: 0;
  }

  .page-faq .faq-hero__strip {
    grid-template-columns: repeat(3, 1fr);
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-hero__strip > div {
    grid-template-columns: 1fr;
    gap: 8px;
    border-bottom: 0;
    border-left: 1px solid var(--line);
    padding: 18px clamp(12px, 1.6vw, 22px) 14px;
  }

  .page-faq .faq-hero__strip > div:first-child {
    border-left: 0;
    padding-left: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-faq .state-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(24px, 3.4vw, 52px);
  }

  .page-faq .state-rail {
    flex-direction: column;
    gap: 12px;
    position: sticky;
    top: 108px;
    align-self: start;
  }

  .page-faq .state-cols {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-faq .state-media {
    margin-top: 24px;
  }

  .page-faq .fit-cases {
    grid-template-columns: repeat(3, 1fr);
    border-bottom: 1px solid var(--line);
  }

  .page-faq .fit-case {
    border-bottom: 0;
    border-right: 1px solid var(--line);
    padding-right: clamp(18px, 2vw, 28px);
  }

  .page-faq .fit-case:last-child {
    border-right: 0;
  }

  .page-faq .refund-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .contact-cols {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .contact-media {
    margin-top: 40px;
  }
}

@media (min-width: 1180px) {
  .page-faq .contact-media {
    margin-top: 72px;
    margin-left: -24px;
  }

  .page-faq .fit-float {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    right: clamp(20px, 3vw, 40px);
    bottom: clamp(20px, 3vw, 40px);
    z-index: 40;
    padding: 14px 22px;
    background: var(--ink);
    color: var(--mist);
    font-family: var(--font-display);
    font-size: 14px;
    letter-spacing: 0.04em;
    text-decoration: none;
    border: 1px solid var(--ink);
    transition: background-color 160ms ease, color 160ms ease;
  }

  .page-faq .fit-float:hover {
    background: var(--pink);
    border-color: var(--pink);
    color: var(--mist);
  }
}
</PAGE_CSS>