.page-faq {
  --kb-top: calc(var(--header-h) + 8px);
  --kb-rail-top: calc(var(--header-h) + 124px);
  --kb-dim: rgba(232, 238, 246, 0.66);
  --kb-dim-2: rgba(232, 238, 246, 0.5);
  padding-bottom: 96px;
}

.page-faq .breadcrumb {
  padding-top: calc(var(--header-h) + 20px);
  margin-bottom: 8px;
}
.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--slate);
}
.page-faq .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}
.page-faq .breadcrumb__link {
  color: var(--slate);
  text-decoration: none;
}
.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link[aria-current="page"] {
  color: var(--cyan);
}

/* ---------- Hero ---------- */
.page-faq .kb-hero {
  padding: 20px 0 8px;
}
.page-faq .kb-hero__grid {
  display: grid;
  gap: 20px;
}
.page-faq .kb-hero__main {
  min-width: 0;
}
.page-faq .eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}
.page-faq .kb-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(29px, 7.2vw, 60px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--fog);
}
.page-faq .kb-hero__title em {
  font-style: normal;
  background: linear-gradient(96deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-faq .kb-hero__lede {
  max-width: 44ch;
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--kb-dim);
}
.page-faq .kb-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--kb-dim-2);
}
.page-faq .kb-hero__meta-item {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
}
.page-faq .kb-hero__meta-key {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}
.page-faq .kb-hero__side {
  display: none;
}

/* ---------- 搜索控制台 ---------- */
.page-faq .kb-console {
  position: sticky;
  top: var(--kb-top);
  z-index: 30;
  margin: 24px 0 40px;
  background: rgba(5, 7, 12, 0.94);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.page-faq .kb-console__bar {
  display: grid;
  gap: 10px;
  padding: 14px 0;
}
.page-faq .kb-console__title {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--fog);
}
.page-faq .kb-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sharp);
}
.page-faq .kb-search__label {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-faq .kb-search__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 12px 0;
  background: transparent;
  border: 0;
  outline: none;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--fog);
  appearance: none;
}
.page-faq .kb-search__input::placeholder {
  color: var(--slate);
}
.page-faq .kb-search__beam {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s var(--ease);
}
.page-faq .kb-search:focus-within {
  border-color: rgba(44, 232, 224, 0.55);
}
.page-faq .kb-search:focus-within .kb-search__beam {
  transform: scaleX(1);
}
.page-faq .kb-search__hint {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--kb-dim-2);
  display: none;
}

/* ---------- 主体两栏 ---------- */
.page-faq .kb-body {
  padding: 0;
}
.page-faq .kb-body__grid {
  display: grid;
  gap: 40px;
}

.page-faq .kb-rail__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.page-faq .kb-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq .kb-rail__item + .kb-rail__item {
  margin-top: 2px;
}
.page-faq .kb-rail__link {
  position: relative;
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 11px 8px 11px 18px;
  border-left: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.55;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
    margin-left 0.18s var(--ease), padding-left 0.18s var(--ease), background 0.18s var(--ease);
}
.page-faq .kb-rail__link::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 19px;
  width: 7px;
  height: 7px;
  background: var(--line);
  transition: background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.page-faq .kb-rail__link:hover,
.page-faq .kb-rail__link:focus-visible {
  color: var(--fog);
  border-left-color: var(--cyan);
  outline: none;
}
.page-faq .kb-rail__link:hover::before,
.page-faq .kb-rail__link:focus-visible::before {
  background: var(--cyan);
}
.page-faq .kb-rail__link.is-active {
  margin-left: -8px;
  padding-left: 26px;
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(44, 232, 224, 0.12), transparent 72%);
}
.page-faq .kb-rail__link.is-active::before {
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(44, 232, 224, 0.9);
}
.page-faq .kb-rail__num {
  flex: none;
  font-size: 11px;
  color: var(--slate);
  letter-spacing: 0.06em;
}
.page-faq .kb-rail__link.is-active .kb-rail__num {
  color: var(--cyan);
}
.page-faq .kb-rail__foot {
  margin: 20px 0 0;
  padding-left: 18px;
  border-left: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--kb-dim-2);
}

/* ---------- 章节 ---------- */
.page-faq .kb-stream {
  display: grid;
  gap: 64px;
  min-width: 0;
}
.page-faq .kb-group {
  scroll-margin-top: calc(var(--header-h) + 150px);
  min-width: 0;
}
.page-faq .kb-group__grid {
  display: grid;
  gap: 24px;
  margin-bottom: 22px;
}
.page-faq .kb-group__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}
.page-faq .kb-group__title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--fog);
}
.page-faq .kb-group__lede {
  max-width: 42ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--kb-dim);
}

/* ---------- 图片 ---------- */
.page-faq .kb-figure {
  margin: 0;
}
.page-faq .kb-figure__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r-sharp);
  background: var(--ink-2);
}
.page-faq .kb-figure__cap {
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--violet);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--kb-dim-2);
}

/* ---------- 步骤折叠 ---------- */
.page-faq .kb-step {
  border: 1px solid var(--line);
  background: var(--ink-2);
  border-radius: var(--r-sharp);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease),
    background 0.18s var(--ease);
}
.page-faq .kb-step + .kb-step {
  margin-top: 8px;
}
.page-faq .kb-step:hover {
  border-color: rgba(44, 232, 224, 0.42);
}
.page-faq .kb-step[open] {
  border-color: var(--cyan);
  background: #0C121C;
  box-shadow: 0 0 0 1px rgba(44, 232, 224, 0.14),
    0 24px 56px -40px rgba(44, 232, 224, 0.75);
}
.page-faq .kb-step__trigger {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
}
.page-faq .kb-step__trigger::-webkit-details-marker {
  display: none;
}
.page-faq .kb-step__trigger:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 2px;
}
.page-faq .kb-step__num {
  flex: none;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--slate);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.page-faq .kb-step[open] .kb-step__num {
  color: var(--cyan);
  border-color: var(--cyan);
}
.page-faq .kb-step__title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--fog);
}
.page-faq .kb-step__mark {
  position: relative;
  flex: none;
  width: 12px;
  height: 12px;
  margin-top: 8px;
}
.page-faq .kb-step__mark::before,
.page-faq .kb-step__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}
.page-faq .kb-step__mark::before {
  top: 5px;
  left: 0;
  width: 12px;
  height: 1.5px;
}
.page-faq .kb-step__mark::after {
  top: 0;
  left: 5px;
  width: 1.5px;
  height: 12px;
}
.page-faq .kb-step[open] .kb-step__mark::after {
  transform: scaleY(0);
  opacity: 0;
}
.page-faq .kb-step__panel {
  padding: 0 16px 20px 16px;
  border-top: 1px solid var(--line);
  margin-top: 2px;
  padding-top: 16px;
}

.page-faq .kb-flow {
  list-style: none;
  counter-reset: kbflow;
  margin: 0 0 16px;
  padding: 0;
}
.page-faq .kb-flow__item {
  counter-increment: kbflow;
  position: relative;
  padding: 0 0 13px 30px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--kb-dim);
}
.page-faq .kb-flow__item:last-child {
  padding-bottom: 0;
}
.page-faq .kb-flow__item::before {
  content: counter(kbflow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}
.page-faq .kb-expect {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0;
  padding: 12px 14px;
  border-left: 2px solid var(--green);
  background: rgba(124, 255, 107, 0.06);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}
.page-faq .kb-expect::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px rgba(124, 255, 107, 0.85);
}

/* ---------- 决策图 ---------- */
.page-faq .kb-diagram {
  margin: 0 0 22px;
  padding: 20px 16px 14px;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(122, 77, 255, 0.1), transparent 58%), var(--ink-2);
  border-radius: var(--r-sharp);
}
.page-faq .kb-diagram__svg {
  display: block;
  width: 100%;
  height: auto;
}
.page-faq .kb-diagram__cap {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--kb-dim-2);
}

/* ---------- 季度记录 ---------- */
.page-faq .kb-season {
  margin-top: 96px;
  padding: 56px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(122, 77, 255, 0.08), transparent 70%);
}
.page-faq .kb-season__grid {
  display: grid;
  gap: 32px;
}
.page-faq .kb-season__title {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 4.4vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--fog);
}
.page-faq .kb-season__lede {
  margin: 0;
  max-width: 40ch;
  font-size: 14px;
  line-height: 1.9;
  color: var(--kb-dim);
}
.page-faq .kb-season__col {
  padding-top: 18px;
  border-top: 2px solid var(--cyan);
}
.page-faq .kb-season__col:nth-child(3) {
  border-top-color: var(--violet);
}
.page-faq .kb-season__col-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--fog);
}
.page-faq .kb-season__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq .kb-season__list li {
  position: relative;
  padding: 9px 0 9px 20px;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--kb-dim);
}
.page-faq .kb-season__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}
.page-faq .kb-season__col:nth-child(3) .kb-season__list li::before {
  background: var(--violet);
}

/* ---------- 联系 ---------- */
.page-faq .kb-help {
  margin-top: 96px;
}
.page-faq .kb-help__grid {
  display: grid;
  gap: 36px;
}
.page-faq .kb-help__title {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 4.4vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--fog);
}
.page-faq .kb-help__lede {
  margin: 0 0 20px;
  max-width: 44ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--kb-dim);
}
.page-faq .kb-help__need {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}
.page-faq .kb-help__need li {
  position: relative;
  padding: 8px 0 8px 26px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--kb-dim);
}
.page-faq .kb-help__need li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 17px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--cyan);
}
.page-faq .kb-help__aside {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--kb-dim-2);
}
.page-faq .kb-help__aside a,
.page-faq .kb-help__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 232, 224, 0.35);
  transition: border-color 0.18s var(--ease);
}
.page-faq .kb-help__aside a:hover,
.page-faq .kb-help__foot a:hover {
  border-bottom-color: var(--cyan);
}

.page-faq .kb-help__card {
  position: relative;
  padding: 26px 22px;
  border: 1px solid var(--line);
  background: linear-gradient(148deg, rgba(44, 232, 224, 0.09), transparent 62%), var(--ink-2);
  border-radius: var(--r-sharp);
}
.page-faq .kb-help__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 88px;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--cyan));
}
.page-faq .kb-help__key {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--slate);
}
.page-faq .kb-help__val {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.6;
  word-break: break-all;
  color: var(--fog);
}
.page-faq .kb-copy {
  display: inline-block;
  padding: 9px 18px;
  border: 1px solid var(--red);
  border-radius: var(--r-sharp);
  background: transparent;
  font-family: var(--font-body);
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--fog);
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease),
    box-shadow 0.18s var(--ease);
}
.page-faq .kb-copy:hover,
.page-faq .kb-copy:focus-visible {
  background: var(--red);
  color: #06090F;
  box-shadow: 0 0 0 1px rgba(255, 59, 92, 0.4), 0 14px 30px -18px rgba(255, 59, 92, 0.9);
  outline: none;
}
.page-faq .kb-help__rows {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.page-faq .kb-help__row {
  display: grid;
  gap: 4px;
  padding: 10px 0;
}
.page-faq .kb-help__row + .kb-help__row {
  border-top: 1px dashed var(--line);
}
.page-faq .kb-help__row dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--slate);
}
.page-faq .kb-help__row dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--fog);
  word-break: break-word;
}
.page-faq .kb-help__foot {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--kb-dim-2);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 599px) {
  .page-faq .kb-step__panel {
    padding-left: 16px;
  }
  .page-faq .kb-flow__item {
    padding-left: 26px;
  }
  .page-faq .kb-hero__title {
    letter-spacing: -0.02em;
  }
}

/* ---------- 中等屏 ---------- */
@media (min-width: 640px) {
  .page-faq .kb-search__hint {
    display: block;
  }
  .page-faq .kb-console__bar {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }
  .page-faq .kb-step__trigger {
    padding: 18px 22px;
  }
  .page-faq .kb-step__panel {
    padding: 18px 22px 22px 66px;
  }
  .page-faq .kb-season__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 40px;
  }
  .page-faq .kb-season__intro {
    grid-column: 1 / -1;
  }
  .page-faq .kb-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .kb-body__grid {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
  .page-faq .kb-rail {
    position: sticky;
    top: var(--kb-rail-top);
  }
  .page-faq .kb-stream {
    gap: 88px;
  }
  .page-faq .kb-group__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 36px;
    align-items: end;
  }
  .page-faq .kb-figure--wide {
    margin-top: 8px;
  }
  .page-faq .kb-hero__side {
    display: flex;
    justify-content: flex-end;
    align-items: flex-start;
    padding-top: 14px;
  }
  .page-faq .kb-hero__vtext {
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.34em;
    color: var(--slate);
    white-space: nowrap;
  }
  .page-faq .kb-hero__grid {
    grid-template-columns: minmax(0, 1fr) 48px;
    gap: 32px;
    align-items: start;
  }
  .page-faq .kb-console__bar {
    grid-template-columns: 260px minmax(0, 1fr);
    align-items: center;
    column-gap: 28px;
  }
  .page-faq .kb-search__hint {
    grid-column: 2;
  }
  .page-faq .kb-season {
    margin-top: 120px;
    padding: 72px 0;
  }
  .page-faq .kb-help {
    margin-top: 120px;
  }
  .page-faq .kb-diagram {
    padding: 28px 28px 18px;
  }
  .page-faq .kb-help__card {
    padding: 32px 30px;
  }
}

@media (min-width: 1180px) {
  .page-faq .kb-body__grid {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: 72px;
  }
  .page-faq .kb-group__grid {
    grid-template-columns: minmax(0, 1fr) 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 0.01ms !important;
  }
}