.page-faq {
  --faq-rail: 232px;
  --faq-line: rgba(18, 22, 28, .12);
  --faq-ink-soft: #39414d;
  display: block;
  padding-bottom: 84px;
  background: var(--k-paper);
  color: var(--k-ink);
  font-family: var(--k-font);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 2px solid var(--k-ink);
  background:
    radial-gradient(120% 140% at 90% 4%, rgba(107, 224, 26, .3) 0%, rgba(107, 224, 26, 0) 58%),
    linear-gradient(180deg, #ffffff 0%, var(--k-paper) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -34px;
  width: 66%;
  height: 132px;
  background: repeating-linear-gradient(118deg, rgba(27, 59, 122, .16) 0 2px, transparent 2px 15px);
  transform: skewY(-3.2deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: 26px;
  padding-bottom: 46px;
}

.page-faq .faq-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 22px 0 0;
  font-family: var(--k-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--k-green-deep);
}

.page-faq .faq-hero__tag-bar {
  display: block;
  width: 26px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--k-green) 0%, var(--k-orange) 100%);
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  max-width: 15em;
  font-size: clamp(32px, 6.4vw, 62px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.022em;
}

.page-faq .faq-hero__title .hl {
  background: linear-gradient(transparent 64%, var(--k-green-soft) 64%);
  padding: 0 2px;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 50ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--faq-line);
  list-style: none;
}

.page-faq .faq-facts li {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--k-grey);
}

.page-faq .faq-facts strong {
  color: var(--k-ink);
  font-weight: 700;
}

/* ============ 主体双栏 ============ */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: 42px;
}

/* ============ 左侧目录 ============ */
.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--k-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--k-grey);
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 7px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  padding: 8px 13px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: #fff;
  color: var(--k-ink);
  font-size: 13.5px;
  line-height: 1.3;
  white-space: nowrap;
  text-decoration: none;
  transition: background .22s var(--k-ease), border-color .22s var(--k-ease), color .22s var(--k-ease);
}

.page-faq .faq-toc__num {
  font-family: var(--k-mono);
  font-size: 10.5px;
  letter-spacing: .06em;
  color: var(--k-orange);
}

.page-faq .faq-toc__link[aria-current="true"] {
  border-color: var(--k-green-deep);
  background: var(--k-green-soft);
}

/* ============ 内容流 ============ */
.page-faq .faq-flow {
  min-width: 0;
}

.page-faq .faq-sec + .faq-sec {
  margin-top: 60px;
}

/* ============ 章节标题 ============ */
.page-faq .section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 6px;
  margin: 0 0 24px;
  padding-bottom: 13px;
  border-bottom: 2px solid var(--k-ink);
}

.page-faq .section-head__index {
  grid-row: 1;
  grid-column: 1;
  font-family: var(--k-mono);
  font-size: 13px;
  letter-spacing: .08em;
  line-height: 1.7;
  color: var(--k-orange);
}

.page-faq .section-head__title {
  grid-row: 1;
  grid-column: 2;
  margin: 0;
  font-size: clamp(22px, 3.6vw, 31px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.015em;
}

.page-faq .section-head__note {
  grid-row: 2;
  grid-column: 2;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--k-grey);
}

/* ============ 步骤条 ============ */
.page-faq .faq-steps {
  position: relative;
  padding-left: 26px;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 26px;
  bottom: 26px;
  width: 2px;
  background: linear-gradient(180deg, var(--k-green) 0%, var(--k-green) 40%, rgba(107, 224, 26, .2) 100%);
}

.page-faq .faq-step {
  position: relative;
  border: 1px solid var(--faq-line);
  border-radius: 2px 16px 2px 16px;
  background: #fff;
  transition: border-color .22s var(--k-ease), box-shadow .22s var(--k-ease);
}

.page-faq .faq-step + .faq-step {
  margin-top: 12px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 23px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--k-green);
  box-shadow: 0 0 0 3px var(--k-paper);
}

.page-faq .faq-step:hover {
  border-color: rgba(30, 122, 46, .38);
}

.page-faq .faq-step__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-step__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--k-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--k-green-deep);
}

.page-faq .faq-step[open] .faq-step__head::after {
  content: "–";
  color: var(--k-orange);
}

.page-faq .faq-step__num {
  flex: 0 0 auto;
  font-family: var(--k-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--k-orange);
}

.page-faq .faq-step__title {
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.45;
}

.page-faq .faq-step__body {
  padding: 0 18px 18px;
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--faq-ink-soft);
}

/* ============ 图片 ============ */
.page-faq .faq-figure {
  margin: 24px 0 0;
  border-radius: 2px 20px 2px 20px;
  overflow: hidden;
}

/* ============ 订阅卡片 ============ */
.page-faq .faq-tiles {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 13px;
}

.page-faq .faq-tile {
  padding: 18px;
  border: 1px solid var(--faq-line);
  border-radius: 2px 18px 2px 18px;
  background: #fff;
}

.page-faq .faq-tile--dark {
  border-color: transparent;
  background: linear-gradient(150deg, var(--k-night) 0%, var(--k-blue) 100%);
  color: #eef2f8;
}

.page-faq .faq-tile__num {
  margin: 0;
  font-family: var(--k-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--k-orange);
}

.page-faq .faq-tile--dark .faq-tile__num {
  color: var(--k-green);
}

.page-faq .faq-tile__title {
  margin: 10px 0 0;
  font-size: 17.5px;
  font-weight: 900;
  line-height: 1.32;
}

.page-faq .faq-tile__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--k-grey);
}

.page-faq .faq-tile--dark .faq-tile__text {
  color: rgba(238, 242, 248, .78);
}

/* ============ 有序步骤文字 ============ */
.page-faq .faq-flowlist {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqflow;
}

.page-faq .faq-flowlist li {
  display: flex;
  gap: 12px;
  padding: 11px 0;
  border-top: 1px solid var(--faq-line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-flowlist__n {
  flex: 0 0 auto;
  font-family: var(--k-mono);
  font-size: 12px;
  color: var(--k-green-deep);
  padding-top: 3px;
}

.page-faq .faq-inline-link {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--k-grey);
}

.page-faq .faq-inline-link a {
  color: var(--k-green-deep);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-faq .faq-inline-link a:hover {
  color: var(--k-orange);
}

/* ============ 时间轴 ============ */
.page-faq .faq-axis {
  margin: 4px 0 26px;
  padding: 12px 4px 6px;
  border: 1px solid var(--faq-line);
  border-radius: 2px 20px 2px 20px;
  background: #fff;
}

.page-faq .faq-timeline {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ============ 键值行 ============ */
.page-faq .faq-rows {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-rows__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-rows__key {
  font-family: var(--k-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--k-grey);
}

.page-faq .faq-rows__val {
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

/* ============ 面板分栏 ============ */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-faq .faq-callout {
  padding: 20px;
  border-radius: 2px 18px 2px 18px;
  background: var(--k-orange-soft);
}

.page-faq .faq-callout__label {
  margin: 0;
  font-family: var(--k-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #8a3a00;
}

.page-faq .faq-callout__value {
  margin: 8px 0 0;
  font-size: 48px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--k-orange);
}

.page-faq .faq-callout__value span {
  font-size: 16px;
  font-weight: 700;
  margin-left: 4px;
  letter-spacing: 0;
}

.page-faq .faq-callout__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: #6a3b17;
}

/* ============ 资料格式 ============ */
.page-faq .faq-shelf {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 13px;
  margin-bottom: 22px;
}

.page-faq .faq-format {
  padding: 18px;
  border-left: 4px solid var(--k-green);
  border-radius: 0 16px 0 16px;
  background: var(--k-green-soft);
}

.page-faq .faq-format--csv {
  border-left-color: var(--k-orange);
  background: var(--k-orange-soft);
}

.page-faq .faq-format__tag {
  margin: 0;
  font-family: var(--k-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--k-green-deep);
}

.page-faq .faq-format--csv .faq-format__tag {
  color: #8a3a00;
}

.page-faq .faq-format__title {
  margin: 9px 0 0;
  font-size: 17px;
  font-weight: 900;
  line-height: 1.35;
}

.page-faq .faq-format__text {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: #2c3540;
}

/* ============ 折叠问答 ============ */
.page-faq .faq-group + .faq-group {
  margin-top: 28px;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--k-ink);
}

.page-faq .faq-group__num {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: var(--k-night);
  color: var(--k-green);
  font-family: var(--k-mono);
  font-size: 11px;
  line-height: 1;
}

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

.page-faq .faq-qa__q {
  position: relative;
  padding: 15px 0 15px 15px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -.005em;
}

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

.page-faq .faq-qa__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  bottom: 15px;
  width: 3px;
  border-radius: 2px;
  background: rgba(18, 22, 28, .13);
  transition: background .22s var(--k-ease);
}

.page-faq .faq-qa[open] > .faq-qa__q::before {
  background: var(--k-orange);
}

.page-faq .faq-qa__q:hover::before {
  background: var(--k-green);
}

.page-faq .faq-qa__a {
  padding: 0 0 18px 15px;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

/* ============ 人工协助 ============ */
.page-faq .faq-help {
  padding: 28px 22px;
  border-radius: 2px 22px 2px 22px;
  background: linear-gradient(140deg, var(--k-night) 0%, var(--k-blue) 100%);
  color: #eaf0f8;
}

.page-faq .faq-help__label {
  margin: 0;
  font-family: var(--k-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--k-green);
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  font-size: clamp(21px, 3.4vw, 28px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -.01em;
}

.page-faq .faq-help__text {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: 14.8px;
  line-height: 1.85;
  color: rgba(234, 240, 248, .8);
}

.page-faq .faq-help__contact {
  margin-top: 22px;
  border-top: 1px solid var(--k-hair-dark);
  padding-top: 4px;
}

.page-faq .faq-help__contact p {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3px;
  margin: 0;
  padding: 11px 0;
  border-bottom: 1px solid var(--k-hair-dark);
}

.page-faq .faq-help__key {
  font-family: var(--k-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(234, 240, 248, .6);
}

.page-faq .faq-help__val {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-help__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(234, 240, 248, .62);
}

.page-faq .faq-help__btn {
  margin-top: 20px;
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-faq .faq-tiles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-rows__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 18px;
  }

  .page-faq .faq-help__contact p {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-faq .faq-help {
    padding: 34px 30px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-tiles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-figure {
    margin-top: 28px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 56px;
    padding-top: 52px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--k-header-h) + 30px);
    align-self: start;
    max-height: calc(100vh - var(--k-header-h) - 60px);
    overflow: auto;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 1px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc__link {
    display: flex;
    justify-content: flex-start;
    width: 100%;
    padding: 10px 12px;
    border: 0;
    border-left: 2px solid var(--faq-line);
    border-radius: 0;
    background: transparent;
    white-space: normal;
    font-size: 14px;
    line-height: 1.35;
  }

  .page-faq .faq-toc__link[aria-current="true"] {
    border-left-color: var(--k-orange);
    background: linear-gradient(90deg, rgba(255, 106, 19, .11), rgba(255, 106, 19, 0));
    font-weight: 700;
  }

  .page-faq .faq-hero__inner {
    padding-top: 34px;
    padding-bottom: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}