.page-faq {
  --faq-line: rgba(90, 107, 127, .26);
  --faq-cut: 18px;
  background: var(--fog);
  color: var(--graphite);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq * {
  box-sizing: border-box;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0;
  letter-spacing: -.01em;
}

.page-faq h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
}

.page-faq h3 {
  font-size: clamp(1.05rem, 2.4vw, 1.28rem);
  font-weight: 800;
}

.page-faq p {
  margin: 0;
}

.page-faq a {
  color: var(--blue);
}

/* 面包屑 */
.page-faq .faq-crumb {
  padding: 1.4rem 0 .6rem;
}

.page-faq .faq-crumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: .82rem;
  color: var(--steel);
}

.page-faq .faq-crumb__list li + li::before {
  content: "/";
  margin-right: .35rem;
  color: var(--steel);
}

.page-faq .faq-crumb__list a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

/* 首屏 */
.page-faq .faq-hero {
  background: linear-gradient(150deg, var(--navy) 0%, var(--blue) 72%, #16457c 100%);
  color: var(--fog);
  padding: 2.2rem 0 3rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), 0 100%);
  margin-bottom: -.5rem;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 2rem;
}

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

.page-faq .faq-hero h1 {
  font-size: clamp(2.1rem, 7.4vw, 3.6rem);
  font-weight: 900;
  margin-top: .7rem;
  max-width: 16em;
}

.page-faq .faq-hero__lead {
  margin-top: 1.1rem;
  max-width: 34em;
  font-size: clamp(1rem, 2.6vw, 1.1rem);
  line-height: 1.8;
  color: rgba(247, 249, 252, .88);
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.6rem;
}

.page-faq .faq-hero__facts {
  display: grid;
  gap: .75rem;
  list-style: none;
  margin: 0;
  padding: 0;
  align-content: start;
}

.page-faq .faq-hero__fact {
  display: flex;
  align-items: baseline;
  gap: .85rem;
  padding: .85rem 1rem;
  background: rgba(11, 31, 58, .45);
  border-left: 3px solid var(--orange);
}

.page-faq .faq-hero__num {
  font-family: var(--font-num);
  font-size: clamp(2rem, 7vw, 2.7rem);
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  white-space: nowrap;
}

.page-faq .faq-hero__num em {
  font-style: normal;
  font-size: .4em;
  margin-left: .12em;
  color: rgba(247, 249, 252, .8);
  letter-spacing: .02em;
}

.page-faq .faq-hero__cap {
  font-size: .86rem;
  color: rgba(247, 249, 252, .82);
  line-height: 1.4;
}

/* 四步核对 */
.page-faq .faq-walk {
  background: var(--mist);
  padding: 3rem 0 3.2rem;
}

.page-faq .faq-walk__head {
  max-width: 40em;
  margin-bottom: 1.9rem;
}

.page-faq .faq-walk__intro {
  margin-top: .8rem;
  color: var(--steel);
}

.page-faq .faq-walk__grid {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-rail {
  background: var(--navy);
  color: var(--fog);
  padding: 1.15rem 1.15rem 1.25rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-rail__cap {
  font-family: var(--font-num);
  font-size: .82rem;
  letter-spacing: .22em;
  color: var(--orange);
  margin-bottom: .8rem;
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-rail__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .45rem .6rem;
  color: rgba(247, 249, 252, .9);
  text-decoration: none;
  font-size: .88rem;
  border: 1px solid rgba(247, 249, 252, .26);
  white-space: nowrap;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--orange);
  color: #fff;
}

.page-faq .faq-rail__n {
  font-family: var(--font-num);
  font-size: 1.1rem;
  color: var(--orange);
  line-height: 1;
}

.page-faq .faq-rail__tip {
  margin-top: .95rem;
  font-size: .8rem;
  line-height: 1.6;
  color: rgba(247, 249, 252, .72);
  border-top: 1px dashed rgba(247, 249, 252, .24);
  padding-top: .7rem;
}

.page-faq .faq-walk__body {
  display: grid;
  gap: 1rem;
}

.page-faq .faq-step {
  position: relative;
  background: var(--fog);
  padding: 1.35rem 1.2rem 1.35rem 1.35rem;
  border-left: 4px solid var(--orange);
  box-shadow: var(--shadow-panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(2.6rem, 10vw, 4rem);
  font-weight: 700;
  line-height: .9;
  color: var(--orange);
  letter-spacing: .02em;
}

.page-faq .faq-step h3 {
  margin-top: .45rem;
}

.page-faq .faq-step p {
  margin-top: .6rem;
  font-size: .96rem;
  color: #2c3a4b;
}

.page-faq .faq-step__list {
  margin: .85rem 0 0;
  padding-left: 1.1rem;
  font-size: .92rem;
  color: #2c3a4b;
}

.page-faq .faq-step__list li + li {
  margin-top: .3rem;
}

.page-faq .faq-check {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin-top: 1rem;
  padding: .4rem .7rem .4rem .5rem;
  background: var(--mist);
  font-size: .88rem;
  color: var(--blue);
  font-weight: 700;
  cursor: pointer;
}

.page-faq .faq-check input {
  appearance: none;
  -webkit-appearance: none;
  width: 1.05rem;
  height: 1.05rem;
  margin: 0;
  border: 2px solid var(--steel);
  background: var(--fog);
  cursor: pointer;
}

.page-faq .faq-check input:checked {
  background: var(--signal);
  border-color: var(--signal);
}

.page-faq .faq-figure {
  margin: 0;
  background: var(--fog);
  border: 1px solid var(--faq-line);
}

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

.page-faq .faq-figure .media-frame__caption {
  padding: .8rem 1rem;
  font-size: .84rem;
  color: var(--steel);
  border-top: 1px solid var(--faq-line);
  line-height: 1.6;
}

/* 问题分组 */
.page-faq .faq-scene {
  padding: 3rem 0 3.2rem;
  background: var(--fog);
}

.page-faq .faq-scene__head {
  max-width: 40em;
  margin-bottom: 1.8rem;
}

.page-faq .faq-scene__head p {
  margin-top: .7rem;
  color: var(--steel);
}

.page-faq .faq-scene__grid {
  display: grid;
  gap: 1rem;
}

.page-faq .faq-scenecard {
  position: relative;
  padding: 1.35rem 1.2rem 1.4rem;
  background: #fff;
  border-top: 4px solid var(--blue);
  border-bottom: 1px solid var(--faq-line);
  display: flex;
  flex-direction: column;
  gap: .55rem;
}

.page-faq .faq-scenecard .tag {
  align-self: flex-start;
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .04em;
  padding: .16rem .55rem;
  background: var(--mist);
  color: var(--blue);
}

.page-faq .faq-scenecard .tag--warn {
  background: var(--warn);
  color: var(--navy);
}

.page-faq .faq-scenecard .tag--ok {
  background: var(--signal);
  color: #fff;
}

.page-faq .faq-scenecard p {
  font-size: .93rem;
  color: #2c3a4b;
}

.page-faq .faq-scenecard__steps {
  margin: 0;
  padding-left: 1.1rem;
  font-size: .9rem;
  color: var(--steel);
}

.page-faq .faq-scenecard__steps li + li {
  margin-top: .25rem;
}

.page-faq .faq-scene__grid + .faq-figure {
  margin-top: 1.4rem;
}

/* 现场排查 */
.page-faq .faq-field {
  padding: 3rem 0;
  background: var(--navy);
  color: var(--fog);
}

.page-faq .faq-field__head {
  max-width: 38em;
  margin-bottom: 1.9rem;
}

.page-faq .faq-field__head p {
  margin-top: .7rem;
  color: rgba(247, 249, 252, .76);
}

.page-faq .faq-field__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-faq .faq-field__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .95rem;
  align-items: start;
  padding: 1.05rem 1rem;
  background: rgba(247, 249, 252, .07);
  border-left: 3px solid var(--ember);
}

.page-faq .faq-field__idx {
  font-family: var(--font-num);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-field__body h3 {
  color: #fff;
}

.page-faq .faq-field__body p {
  margin-top: .45rem;
  font-size: .93rem;
  color: rgba(247, 249, 252, .82);
}

.page-faq .faq-field__more {
  margin-top: 1.6rem;
  font-size: .92rem;
  color: rgba(247, 249, 252, .8);
}

.page-faq .faq-field__more a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 26, .5);
}

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

/* 工单准备 */
.page-faq .faq-ticket {
  padding: 3rem 0;
  background: var(--mist);
}

.page-faq .faq-ticket__grid {
  display: grid;
  gap: 1.7rem;
}

.page-faq .faq-ticket__lead p {
  margin-top: .8rem;
  color: #33414f;
}

.page-faq .faq-ticket__note {
  font-size: .92rem;
  color: var(--steel);
}

.page-faq .faq-ticket__note strong {
  font-family: var(--font-num);
  font-size: 1.15rem;
  color: var(--ember);
  letter-spacing: .02em;
}

.page-faq .faq-ticket__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-faq .faq-ticket__item {
  background: var(--fog);
  padding: .9rem 1rem;
  border-left: 4px solid var(--orange);
}

.page-faq .faq-ticket__k {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: .95rem;
  color: var(--blue);
  letter-spacing: .02em;
}

.page-faq .faq-ticket__item p {
  margin-top: .25rem;
  font-size: .88rem;
  color: var(--steel);
}

/* 热门问答 */
.page-faq .faq-list {
  padding: 3rem 0 3.2rem;
  background: var(--fog);
}

.page-faq .faq-list__head {
  max-width: 36em;
  margin-bottom: 1.6rem;
}

.page-faq .faq-list__head p {
  margin-top: .7rem;
  color: var(--steel);
}

.page-faq .faq-list__items {
  border-top: 2px solid var(--navy);
}

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

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem .2rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--navy);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-num);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--orange);
}

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

.page-faq .faq-item summary:hover {
  color: var(--blue);
}

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

.page-faq .faq-item__a {
  padding: 0 1.4rem 1.15rem .2rem;
}

.page-faq .faq-item__a p {
  font-size: .95rem;
  color: #2c3a4b;
  border-left: 3px solid var(--mist);
  padding-left: .85rem;
}

/* 下一步 */
.page-faq .faq-next {
  padding: 2.6rem 0 3.4rem;
  background: var(--fog);
}

.page-faq .faq-next__title {
  font-size: clamp(1.4rem, 3.4vw, 1.9rem);
  margin-bottom: 1.2rem;
}

.page-faq .faq-next__grid {
  display: grid;
  gap: .85rem;
}

.page-faq .faq-next__card {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1.2rem 1.1rem;
  text-decoration: none;
  color: var(--navy);
  background: #fff;
  border: 1px solid var(--faq-line);
  border-left: 4px solid var(--blue);
  transition: transform .18s ease, border-color .18s ease;
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  transform: translateY(-2px);
  border-left-color: var(--orange);
}

.page-faq .faq-next__card--lead {
  background: var(--navy);
  color: var(--fog);
  border-left-color: var(--orange);
  border-color: transparent;
}

.page-faq .faq-next__kick {
  font-family: var(--font-num);
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--ember);
}

.page-faq .faq-next__card--lead .faq-next__kick {
  color: var(--orange);
}

.page-faq .faq-next__card strong {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 900;
}

.page-faq .faq-next__desc {
  font-size: .87rem;
  line-height: 1.6;
  color: var(--steel);
}

.page-faq .faq-next__card--lead .faq-next__desc {
  color: rgba(247, 249, 252, .82);
}

@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 2.8rem 0 3.8rem;
  }

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

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

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

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

  .page-faq .faq-field__item {
    padding: 1.2rem 1.2rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: 1fr;
    margin-top: .4rem;
  }

  .page-faq .faq-walk__grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 2.4rem;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 1.25rem;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    overflow: visible;
  }

  .page-faq .faq-rail__link {
    width: 100%;
  }

  .page-faq .faq-ticket__grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.15fr);
    gap: 2.4rem;
    align-items: start;
  }

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

  .page-faq .faq-field__item:first-child {
    grid-column: 1 / -1;
  }
}

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

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