.page-faq {
  --faq-cut: 18px;
  --faq-line: 1px solid var(--rule);
  --faq-pad: clamp(1.15rem, 4vw, 1.75rem);
  background-color: var(--ink);
  color: var(--warm);
  font-family: var(--font-body);
}

/* 面包屑 */
.page-faq .breadcrumb {
  padding-block: 1.1rem 0.6rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--text-soft);
}

.page-faq .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-faq .breadcrumb li + li::before {
  content: "／";
  color: var(--bronze);
}

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

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--gold);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--faq-line);
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
}

.page-faq .faq-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 11, 13, 0.32) 0%, rgba(11, 11, 13, 0.86) 62%, var(--ink) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.page-faq .faq-hero__inner {
  position: relative;
  padding-block: clamp(2.4rem, 9vw, 5rem);
}

.page-faq .faq-hero .eyebrow {
  display: inline-block;
  margin: 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--bronze);
  color: var(--gold);
  font-size: 0.74rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  margin: 1rem 0 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7.6vw, 4rem);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: 0.05em;
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 1.15rem 0 0;
  color: var(--text-soft);
  font-size: clamp(1rem, 2.7vw, 1.08rem);
  line-height: 1.95;
}

/* 场景切换 */
.page-faq .faq-switch {
  display: grid;
  gap: 0.7rem;
  margin-top: 1.9rem;
}

.page-faq .faq-switch__item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-height: 48px;
  padding: 0.9rem 1.15rem;
  border: 1px solid var(--rule);
  background-color: rgba(23, 24, 28, 0.74);
  color: var(--warm);
  font-size: 0.98rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
  transition: border-color 0.25s ease, background-color 0.25s ease, transform 0.25s ease;
}

.page-faq .faq-switch__num {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.page-faq .faq-switch__text {
  flex: 1 1 auto;
}

.page-faq .faq-switch__item:hover,
.page-faq .faq-switch__item:focus-visible {
  border-color: var(--gold);
  background-color: rgba(201, 162, 39, 0.13);
  transform: translateY(-2px);
}

.page-faq .faq-switch__item:focus-visible {
  outline: 2px solid var(--glass);
  outline-offset: 3px;
}

/* 章节骨架 */
.page-faq .faq-section {
  padding-block: clamp(2.4rem, 7vw, 4.25rem);
  border-bottom: var(--faq-line);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-faq .faq-section__grid {
  display: grid;
  gap: 1.35rem;
}

.page-faq .faq-section__rail {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.page-faq .faq-rail__num {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 6vw, 2.3rem);
  line-height: 1;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-rail__label {
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  color: var(--steel);
}

.page-faq .faq-section__body h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.8vw, 2.1rem);
  font-weight: 600;
  line-height: 1.42;
  letter-spacing: 0.04em;
}

.page-faq .faq-section__body > p {
  max-width: 64ch;
  margin: 1rem 0 0;
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.95;
}

.page-faq .faq-more {
  margin-top: 1.6rem;
}

/* 三步路径 */
.page-faq .faq-steps {
  display: grid;
  gap: 1rem;
  margin: 1.7rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  padding: 1.35rem 1.25rem 1.4rem;
  background-image: linear-gradient(180deg, rgba(23, 24, 28, 0.96), rgba(23, 24, 28, 0.5));
  border-left: 2px solid var(--bronze);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-faq .faq-step h3 {
  margin: 0.55rem 0 0;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--warm);
}

.page-faq .faq-step p {
  margin: 0.6rem 0 0;
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.9;
}

/* 回访区块 */
.page-faq .faq-return {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.7rem;
}

.page-faq .faq-points {
  display: grid;
  gap: 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-points li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px dashed var(--rule);
}

.page-faq .faq-points li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.page-faq .faq-points__num {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--bronze);
  padding-top: 0.15rem;
}

.page-faq .faq-points strong {
  display: block;
  color: var(--warm);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.page-faq .faq-points p {
  margin: 0.4rem 0 0;
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.9;
}

.page-faq .faq-return__figure {
  margin: 0;
  overflow: hidden;
}

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

/* 版本对照 */
.page-faq .faq-filters {
  display: grid;
  gap: 0;
  margin: 1.7rem 0 0;
}

.page-faq .faq-filters__row {
  display: grid;
  gap: 0.35rem;
  padding: 1.05rem 0;
  border-top: 1px solid var(--rule);
}

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

.page-faq .faq-filters dt {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: 0.05em;
  color: var(--gold);
}

.page-faq .faq-filters dd {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.9;
}

/* 问答手风琴 */
.page-faq .faq-items {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.7rem;
}

.page-faq .faq-item {
  background-color: var(--stone);
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

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

.page-faq .faq-item > summary {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  min-height: 48px;
  padding: 1.05rem 1.15rem;
  cursor: pointer;
  list-style: none;
  color: var(--warm);
  font-family: var(--font-display);
  font-size: 1.04rem;
  letter-spacing: 0.03em;
  line-height: 1.6;
}

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

.page-faq .faq-item > summary::after {
  content: "＋";
  margin-left: auto;
  color: var(--gold);
  font-family: var(--font-body);
  font-size: 1.1rem;
  line-height: 1;
}

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

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--gold);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--glass);
  outline-offset: -3px;
}

.page-faq .faq-item__body {
  padding: 0 1.15rem 1.25rem;
  border-top: 1px solid var(--rule);
}

.page-faq .faq-item__body p {
  max-width: 64ch;
  margin: 0.95rem 0 0;
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.95;
}

.page-faq .faq-item[open] .faq-item__body {
  animation: faq-panel-in 0.28s ease-out;
}

@keyframes faq-panel-in {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 联系客服 */
.page-faq .faq-contact {
  margin-top: 1.7rem;
  padding: clamp(1.4rem, 4.5vw, 2.25rem);
  background-image: linear-gradient(140deg, rgba(201, 162, 39, 0.16), rgba(23, 24, 28, 0.94) 58%);
  border: 1px solid var(--bronze);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
}

.page-faq .faq-contact__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 0.8rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__list li {
  display: grid;
  gap: 0.3rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq .faq-contact__list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-contact__key {
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  color: var(--steel);
}

.page-faq .faq-contact__list a {
  color: var(--gold);
  text-decoration: none;
  word-break: break-all;
}

.page-faq .faq-contact__list a:hover,
.page-faq .faq-contact__list a:focus-visible {
  text-decoration: underline;
}

.page-faq .faq-contact__note {
  max-width: 62ch;
  margin: 1.4rem 0 0;
  color: var(--text-soft);
  font-size: 0.9rem;
  line-height: 1.9;
}

.page-faq .faq-contact__note a {
  color: var(--glass);
  text-decoration: none;
  border-bottom: 1px solid var(--bronze);
}

.page-faq .faq-contact__note a:hover,
.page-faq .faq-contact__note a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* 平板与桌面 */
@media (min-width: 640px) {
  .page-faq .faq-switch {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 44rem;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-faq .faq-filters__row {
    grid-template-columns: 12rem minmax(0, 1fr);
    gap: 1.5rem;
    align-items: baseline;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-return {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-section__grid {
    grid-template-columns: 7.5rem minmax(0, 1fr);
    gap: clamp(1.5rem, 4vw, 3.5rem);
  }

  .page-faq .faq-section__rail {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    align-self: start;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .page-faq .faq-hero h1 {
    max-width: 22ch;
  }
}

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

  .page-faq .faq-switch__item:hover,
  .page-faq .faq-switch__item:focus-visible {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-item__body {
    animation: none;
  }
}