.page-faq {
  --faq-aside-w: 340px;
  --faq-gap: clamp(1.25rem, 3vw, 3rem);
  --faq-r: 2px;
  display: block;
  color: var(--k1-white);
  position: relative;
  overflow-x: clip;
}

.page-faq .faq-crumbbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
  padding-top: clamp(1.25rem, 3vw, 2rem);
  padding-bottom: clamp(1.25rem, 3vw, 2rem);
  border-bottom: 1px solid var(--k1-grid);
}

.page-faq .faq-crumbbar__note {
  margin: 0;
  font-family: var(--k1-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--k1-mute);
}

.page-faq .faq-crumbbar__note .k1-num {
  color: var(--k1-cyan);
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--k1-cyan), transparent);
  opacity: 0.4;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 5vw, 3.5rem);
  align-items: start;
}

.page-faq .faq-hero__copy {
  max-width: 42ch;
}

.page-faq .faq-h1 {
  margin: 0.6rem 0 0;
  font-family: var(--k1-sans);
  font-size: clamp(2.1rem, 8vw, 4.6rem);
  font-weight: 200;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-faq .faq-h1 span {
  display: block;
  font-weight: 700;
  color: var(--k1-cyan);
}

.page-faq .faq-lede {
  margin-top: 1.25rem;
  color: var(--k1-white);
  font-size: 1.02rem;
}

.page-faq .faq-hero__badges {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .faq-hero__badges li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--k1-hair);
  border-radius: var(--faq-r);
  background: rgba(14, 23, 52, 0.6);
  font-size: 0.78rem;
  color: var(--k1-mute);
}

.page-faq .faq-hero__badges .k1-num {
  color: var(--k1-orange);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

/* ---------- 搜索卡 ---------- */
.page-faq .faq-searchcard {
  position: relative;
  isolation: isolate;
  border: 1px solid var(--k1-hair-strong);
  border-radius: var(--faq-r);
  overflow: hidden;
  min-height: 260px;
  display: flex;
}

.page-faq .faq-searchcard__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
  opacity: 0.5;
  z-index: -2;
}

.page-faq .faq-searchcard__mask {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(120deg, rgba(6, 11, 28, 0.96) 26%, rgba(6, 11, 28, 0.55) 70%, rgba(10, 93, 87, 0.42)),
    repeating-linear-gradient(90deg, rgba(36, 52, 92, 0.5) 0 1px, transparent 1px 44px);
}

.page-faq .faq-searchcard__body {
  padding: clamp(1.25rem, 3.5vw, 2rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.85rem;
  width: 100%;
}

.page-faq .faq-searchcard__title {
  margin: 0;
  font-family: var(--k1-sans);
  font-size: clamp(1.15rem, 3.4vw, 1.6rem);
  font-weight: 700;
  line-height: 1.3;
  max-width: 22ch;
}

.page-faq .faq-search {
  display: block;
  position: relative;
}

.page-faq .faq-search__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.page-faq .faq-search__input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.95rem 1rem;
  border: 1px solid var(--k1-hair-strong);
  border-radius: var(--faq-r);
  background: rgba(6, 11, 28, 0.78);
  color: var(--k1-white);
  font-family: var(--k1-sans);
  font-size: 1rem;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.page-faq .faq-search__input::placeholder {
  color: var(--k1-mute);
}

.page-faq .faq-search__input:focus {
  outline: none;
  border-color: var(--k1-cyan);
  box-shadow: 0 0 0 3px rgba(53, 242, 214, 0.16);
}

.page-faq .faq-search__hint {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--k1-mute);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  position: relative;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: start;
}

/* ---------- 左栏：四步定位 ---------- */
.page-faq .faq-aside__inner {
  border: 1px solid var(--k1-grid);
  border-radius: var(--faq-r);
  background: linear-gradient(180deg, rgba(14, 23, 52, 0.9), rgba(6, 11, 28, 0.75));
  padding: 1.35rem 1.25rem 1.5rem;
}

.page-faq .faq-aside__title {
  margin: 0.55rem 0 1rem;
  font-family: var(--k1-sans);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
}

.page-faq .faq-aside__media {
  margin: 0 0 1.25rem;
  border: 1px solid var(--k1-hair);
  border-radius: var(--faq-r);
}

.page-faq .faq-aside__media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  border-left: 1px solid var(--k1-grid);
  padding-left: 0.9rem;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem;
  align-items: start;
  padding: 0.55rem 0.6rem;
  border-radius: var(--faq-r);
  transition: background 180ms ease;
}

.page-faq .faq-steps__item + .faq-steps__item {
  border-top: 1px dashed rgba(36, 52, 92, 0.9);
}

.page-faq .faq-steps__num {
  font-family: var(--k1-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--k1-cyan);
  padding-top: 0.15rem;
}

.page-faq .faq-steps__name {
  display: block;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--k1-white);
}

.page-faq .faq-steps__desc {
  margin: 0.2rem 0 0;
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--k1-mute);
}

.page-faq .faq-aside__cta {
  margin-top: 1.25rem;
  width: 100%;
  justify-content: center;
}

/* ---------- 右栏：筛选条 ---------- */
.page-faq .faq-filterbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--k1-hair);
  border-radius: var(--faq-r);
  background: var(--k1-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: sticky;
  top: calc(var(--k1-head-h) + 0.5rem);
  z-index: 4;
}

.page-faq .faq-filterbar .k1-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.page-faq .faq-filterbar .k1-filter__label {
  margin: 0;
  font-family: var(--k1-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--k1-mute);
}

.page-faq .faq-filterbar .k1-chip[aria-pressed="true"] {
  background: rgba(53, 242, 214, 0.14);
  border-color: var(--k1-cyan);
  color: var(--k1-cyan);
}

/* ---------- 分组与问题卡 ---------- */
.page-faq .faq-groups {
  margin-top: 2rem;
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: start;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--k1-grid);
  position: relative;
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 64px;
  height: 2px;
  background: var(--k1-orange);
}

.page-faq .faq-group__index {
  font-family: var(--k1-mono);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--k1-lineblue);
  line-height: 1.1;
  letter-spacing: 0.04em;
}

.page-faq .faq-group__head .k1-h3 {
  margin: 0;
  font-size: clamp(1.1rem, 3vw, 1.35rem);
  font-weight: 700;
  line-height: 1.3;
}

.page-faq .faq-group__note {
  margin: 0.35rem 0 0;
  font-size: 0.85rem;
  color: var(--k1-mute);
}

.page-faq .faq-list {
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.page-faq .faq-item {
  border: 1px solid var(--k1-grid);
  border-radius: var(--faq-r);
  background: rgba(14, 23, 52, 0.72);
  transition: border-color 200ms ease, background 200ms ease, transform 200ms ease;
}

.page-faq .faq-item[open] {
  border-color: var(--k1-hair-strong);
  background: linear-gradient(180deg, rgba(10, 93, 87, 0.28), rgba(14, 23, 52, 0.92) 58%);
}

.page-faq .faq-item__q {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem;
  align-items: start;
  padding: 0.95rem 1rem;
}

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

.page-faq .faq-item__no {
  font-family: var(--k1-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--k1-mute);
  padding-top: 0.2rem;
  transition: color 180ms ease;
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--k1-cyan);
}

.page-faq .faq-item__text {
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--k1-white);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 0.35rem;
  flex: none;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--k1-cyan);
  transition: transform 180ms ease, opacity 180ms ease;
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 1rem 1.05rem 3.05rem;
  border-top: 1px solid rgba(36, 52, 92, 0.85);
  margin-top: 0;
  padding-top: 0.9rem;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--k1-lineblue);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(1rem, 4vw, 3rem);
  border-top: 1px solid var(--k1-grid);
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

.page-faq .faq-contact__panel {
  border: 1px solid var(--k1-hair-strong);
  border-radius: var(--faq-r);
  background:
    linear-gradient(140deg, rgba(10, 93, 87, 0.42), rgba(6, 11, 28, 0.9) 52%),
    var(--k1-void);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.page-faq .faq-contact__title {
  margin: 0.5rem 0 0;
  font-size: clamp(1.5rem, 4.6vw, 2.2rem);
  font-weight: 700;
  line-height: 1.2;
}

.page-faq .faq-contact__text {
  margin: 0.9rem 0 0;
  max-width: 48ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--k1-lineblue);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  align-content: start;
  border-top: 1px solid var(--k1-grid);
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.3rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--k1-grid);
}

.page-faq .faq-contact__key {
  font-family: var(--k1-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--k1-orange);
}

.page-faq .faq-contact__val {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--k1-white);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  font-size: 0.78rem;
  color: var(--k1-mute);
}

.page-faq .faq-contact__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-content: start;
}

/* ---------- 相关入口 ---------- */
.page-faq .faq-related {
  margin-top: clamp(2rem, 5vw, 3.25rem);
}

.page-faq .faq-related__grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.page-faq .faq-related__card {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 0.25rem 0.85rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--k1-grid);
  border-radius: var(--faq-r);
  background: rgba(14, 23, 52, 0.6);
  text-decoration: none;
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.page-faq .faq-related__card .k1-num {
  grid-row: span 2;
  font-family: var(--k1-mono);
  font-size: 0.85rem;
  color: var(--k1-cyan);
  letter-spacing: 0.1em;
  padding-top: 0.2rem;
}

.page-faq .faq-related__card strong {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--k1-white);
}

.page-faq .faq-related__card > span:last-child {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--k1-mute);
}

.page-faq .faq-related__card:hover,
.page-faq .faq-related__card:focus-visible {
  border-color: var(--k1-cyan);
  background: rgba(10, 93, 87, 0.32);
  transform: translateY(-2px);
}

.page-faq .faq-related__card:focus-visible {
  outline: 2px solid var(--k1-cyan);
  outline-offset: 2px;
}

/* ---------- 窄屏修正 ---------- */
@media (max-width: 520px) {
  .page-faq .faq-item__a {
    padding-left: 1rem;
  }

  .page-faq .faq-filterbar {
    position: static;
  }

  .page-faq .faq-group__head::after {
    width: 44px;
  }
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

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

  .page-faq .faq-contact__panel {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }

  .page-faq .faq-contact__acts {
    grid-column: 1 / -1;
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-aside-w) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-faq .faq-aside__inner {
    position: sticky;
    top: calc(var(--k1-head-h) + 1.5rem);
  }

  .page-faq .faq-contact__panel {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) auto;
    align-items: start;
  }

  .page-faq .faq-contact__acts {
    grid-column: auto;
    flex-direction: column;
    align-items: stretch;
  }
}

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

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